Assume that when adults with smartphones are randomly​ selected, 45​% use them in meetings or classes. If 30 adult smartphone users are randomly​ selected, find the probability that exactly 24 of them use their smartphones in meetings or classes.

Answers

Answer 1

Answer:

P(X=12)

Explanation:

The probability of adults using smartphones during meetings or classes,

p = 0.44

The Sample size of adult smartphone users,

n = 15

The required probability is p(x=12)

The probability mass function of the binomial distribution is defined as p(x=12) (nx)px(1−p)n−x, x=0,1,2,…,n

By using the binomial probability distribution to compute the (15-12)!×12!


Related Questions

MANUAL DE LENGUA ES
5. Mediante diagramas descompón los siguientes signos lingüísticos.
Mesa- silla--- flor--- carro--- elefante---camisa--- televisión--- canasta---
Significante:
Significado:

Answers

Mesa:

Significante: M e s a

Significado: un mueble para poner cosas encima de él.

Silla:

Significante: s i l l a

Significado: un mueble para sentarse.

Flor:

Significante: f l o r

Significado: una estructura reproductiva de las plantas con pétalos y un aroma dulce.

Carro:

Significante: c a r r o

Significado: un vehículo de cuatro ruedas impulsado por un motor.

Elefante:

Significante: e l e f a n t e

Significado: un animal terrestre de gran tamaño con una trompa y grandes orejas.

Camisa:

Significante: c a m i s a

Significado: una prenda de vestir que cubre el torso y los brazos.

Televisión:

Significante: t e l e v i s i ó n

Significado: un dispositivo que muestra imágenes y sonido transmitidos por ondas electromagnéticas.

Canasta:

Significante: c a n a s t a

Significado: un recipiente tejido con asas utilizado para transportar y almacenar objetos.

Noel read 90 minutes each day for 6 days. Tyra read 60 minutes each day for 8 days. What is the difference, in minutes, between the total amount of time Noel read and the total amount of time Tyra read?
*
10 points
A 30
B 40
C 60
D 80

Answers

C sixty Minutes

90×6=540

60×8=480

540-480=60

C=60

Construct an argument that is valid according to the pattern of modus
tollens and which has the following universal statement as its main premise: "All planets
orbit the sun.”

Answers

Answer:

Explanation:

Modus Tollens is a valid form of deductive reasoning that works by first assuming a conditional statement, and then using a negation of the consequent to prove that the antecedent must also be false.

Here's an example of an argument that is valid according to the pattern of modus tollens and uses the universal statement "All planets orbit the sun" as its main premise:

Premise 1: All planets orbit the sun.

Premise 2: Pluto does not orbit the sun.

Conclusion: Therefore, Pluto is not a planet.

In this argument, the main premise is the universal statement "All planets orbit the sun." The second premise is the negation of the consequent - that Pluto does not orbit the sun. By using modus tollens, we can logically conclude that the antecedent (that Pluto is a planet) must be false, and therefore, the conclusion is that Pluto is not a planet.

This argument is valid because it follows the structure of modus tollens, and the premises are both true. By starting with a universal statement, we can make a logical deduction based on a particular instance that contradicts the universal statement. In this case, the fact that Pluto does not orbit the sun contradicts the universal statement that all planets orbit the sun, and therefore, we can conclude that Pluto is not a planet.

The shielded metal arc welding process is an electric arc welding process, more commonly known as

Answers

Answer:

stick welding.

Explanation:

The shielded metal arc welding (SMAW) process is commonly known as stick welding because it involves the use of a "stick" or electrode, which is a consumable metal rod coated with a flux that melts and forms a protective gas shield around the weld area. The electrode is held in an electrode holder, which is connected to the welding power source, and the electric arc is created between the electrode and the workpiece, causing the metal to melt and fuse together.

During the welding process, the flux coating on the electrode burns and releases gas, which helps to shield the weld area from the surrounding atmosphere. This protective gas shield prevents the molten metal from reacting with oxygen, nitrogen, and other gases in the air, which could weaken the weld or cause defects.

The stick welding process is widely used in construction, shipbuilding, pipeline welding, and repair work, as it is versatile, portable, and can be used in outdoor environments. The term "stick welding" has become a commonly used name for this welding process due to the use of the stick electrode.

Which one of the following is a dependent clause?
Marci graduated at the top of her class in high school
She was admitted with honors into her college degree program
Throughout her college courses, she continued to earn high grades
Because she graduated from college with honors as well

Answers

Answer:

Because she graduated from college with honors as well

Explanation:

It's because it is not a complete sentence.

In other words, this sentence is a reason, but it is not clear what is this reason for.

Hope it helps!

The sale price of a laptop is $505.44 after 35% discount and 8% additional tax. What was the original price of the laptop before discount and tax?

Answers

Answer:

The original price of the laptop before discount and tax was $718.46.

Explanation:

Let's work backwards from the sale price to find the original price:

1. First, we need to remove the effect of the additional 8% tax.

We can do this by dividing the sale price by 1.08 (100% + 8% = 108%) :

$505.44 / 1.08 = $467.00 (rounded to the nearest cent)

2. Now we need to remove the effect of the 35% discount. We can do this by dividing the price before discount by 0.65 (100% - 35% = 65%) :

$467.00 / 0.65 = $718.46 (rounded to the nearest cent)

1. Respond: Would you like to travel with Gulliver? Explain
2. (a) Support: In the final paragraph of "A Voyage to Brobdingnag," how does Swift use the King's reactions to express his own hopes for humankind? (b) Assess: Do you think these hopes are valid? Wh or why not?

Answers

I would be interested in exploring different parts of the world and experiencing different cultures.

The use of reactions by Swift

Regarding the second question, in the final paragraph of "A Voyage to Brobdingnag," Swift uses the King's reactions to express his hopes for humankind.

The King expresses his disgust at the corruption and greed of the human race, and his admiration for Gulliver's honesty and simplicity. Swift's hope is that by exposing the flaws and weaknesses of humanity, we may be able to recognize and correct them.

As for the validity of these hopes, it is subjective and open to interpretation.

While some may argue that Swift's critique of humanity is overly pessimistic, others may agree with his assessment and believe that we need to address the issues he highlights.

Ultimately, whether or not these hopes are valid depends on one's perspective and beliefs about human nature.

Read more about Gulliver's Travels here:

https://brainly.com/question/1228550

#SPJ1

Assume that when adults with smartphones are randomly​ selected, 45​% use them in meetings or classes. If 30 adult smartphone users are randomly​ selected, find the probability that exactly 24 of them use their smartphones in meetings or classes.

Answers

This problem involves a binomial distribution with n = 30 trials and a success probability of p = 0.45 (using a smartphone in meetings or classes).

The probability of exactly k successes in n trials is given by the binomial probability formula:

P(k successes) = (n choose k) * p^k * (1 - p)^(n - k)

where (n choose k) is the binomial coefficient, equal to n! / (k! * (n - k)!).

Substituting n = 30, p = 0.45, and k = 24, we have:

P(24 out of 30 use smartphones in meetings/classes) = (30 choose 24) * (0.45)^24 * (0.55)^6

Using a calculator or software, we can evaluate this probability as:

P(24 out of 30 use smartphones in meetings/classes) ≈ 0.005

Therefore, the probability of exactly 24 out of 30 adult smartphone users using their smartphones in meetings or classes, when randomly selected, is approximately 0.005 or 0.5%.

what is the message of the song the journey by lea salonga

Answers

Answer:

"The Journey" by Lea Salonga is a song about self-discovery and personal growth. The message of the song is that life is a journey that we must embrace, even when it's difficult. The lyrics encourage the listener to keep moving forward and to trust in themselves and their abilities, even when the road is uncertain.

Hope this helps!
Brainliest and a like is much appreciated!

Answer:

it is an inspirational song about staying positive even in the darkest of times, and thinking one day everything will be fine.

Explanation:

name two examples of long term goal?​

Answers

Answer:

♥Become a better spouse or parent.

♥Complete your first marathon.

♥Create and commit to a fitness routine.

♥Learn a foreign language.

♥Cut junk food out of your diet.

♥Start volunteering regularly.

♥Increase your emotional intelligence.

♥Earn a college degree.

Answer:

1. Saving enough money to retire comfortably.

2. Starting your own business.

3. Buying a house.

4. Paying off all your debts.

5. Traveling to every continent.

6. Learning a new language fluently.

7. Running a marathon.

8. Writing a book.

9. Becoming a CEO of a company.

10. Earning a PhD.

11. Becoming a professional athlete.

12. Building a successful career in a specific field.

13. Becoming financially independent.

14. Starting a family.

15. Becoming a homeowner.

16. Becoming a public speaker.

17. Learning a new skill, such as coding or cooking.

18. Volunteering regularly for a cause you care about.

19. Becoming a mentor to others.

20. Achieving a specific level of fitness or health.

Roger Williams was banished from the Massachusetts Bay Colony because he _____.

argued for the separation of church and state
no longer believed in God
refused to follow the Sabbath
was friendly to the Native Americans

Answers

Answer:

Explanation:

Roger Williams was banished from the Massachusetts Bay Colony because he argued for the separation of church and state. He believed that the government should not be involved in religious matters and that people should be free to worship as they please without interference from the state. This view was considered heretical by the Puritan leaders of the colony, who believed that the government had a duty to enforce religious orthodoxy. As a result, Williams was banished from the colony in 1635 and went on to found the colony of Rhode Island, which became known for its commitment to religious freedom and tolerance.

What is the SAT , define it

Answers

Answer: SAT stands for :Scholastic Aptitude Test: a test taken in the U.S. to measure students' abilities before they go to college

Explanation: SAT simple definition

Other Questions
From her eye, which stands 1.69 meters above the ground, Sadie measures the angle of elevation to the top of a prominent skyscraper to be 36 . If she is standing at a horizontal distance of 275 meters from the base of the skyscraper, what is the height of the skyscraper? Round your answer to the nearest hundredth of a meter if necessary. BRAINLIESTECR: ArgumentativeWrite an essay arguing whether 16 year olds should have the right to vote in state and national elections.Be sure to:Clearly state your answerOrganize your responseSupport you reasons with evidence from the textEdit your response for grammar and conventions F and U included sides and included angles?given is FUN PLEASE helpYou will be writing your own imagist poems titled I Am and Just Because.Imagist poems are typically written using free verse but you may choose to rhyme or edit the provided templates to create a strict structure. Follow the imagist poem templates below. Please delete any parts of the template that might distract the effectiveness of your poem (ex: delete FIRST STANZA, words in parentheses, etc. from poem #1). Your poems should be presented with thought and meaning. They should show an analytical side to your inner most thoughts and feelingsPoem #1: I AMType your poem here:FIRST STANZAI am (your name)I am (name two characteristics)I wonder ... I see ... I hear ... I want ...SECOND STANZAI am (your name again)I say ... I pretend ... I feel ... I worry ... I cry ...THIRD STANZAI am (your name again)I understand ... I dream ... I try ... I hope ...I need FOURTH STANZAI am (your name again)I fear I accept I define I became I am (your name again)Poem #2: JUST BECAUSEType your poem here:Just because Doesn't mean Doesn't mean And doesn't mean Just because Doesn't mean Doesn't mean And doesn't mean Just because Doesn't mean Doesn't mean And doesn't mean Just because (Question)(Question)(Question)(Statement)EXAMPLE BELOW FOR Just Because poem:Just because I am Indian,Doesn't mean I work at seven-eleven,Doesn't mean I have an accent,And doesn't mean I wear a dot on my forehead.Just because I am Indian,Doesn't mean I'm poor,Doesn't mean there are cows roaming down my street,And beggars in front of my door.Just because I am Indian,Doesn't mean I'm unsanitary,Doesn't mean I'm anorexic,And doesnt mean Im looking for a cure.Just because I am Indian,Why should anyone care?What is the difference?What is life without variety?Just because I am Indian.GRADING RUBRIC:Each line includes at least TWO words/short descriptions that reflect each feeling or verb that begins that poem line.Your poem demonstrates an outstanding level of creative thought and uniqueness.You have completed all four stanzas, six lines each. Which symptom is associated with Lyme disease? Use the information given to answer the questionA pack of crayons costs 1. 25. If z packs of crayons are purchased, the total price, P, can be represented by the relation P = 1. 252. Does P 1. 252 represent a function, and why?The relation is a function because there is exactly 1 value of P for every value of 1. The relation is a function because there is exactly 1. 25 value of P for every value of z. The relation is not a function because there is exactly 1. 25 value of P for every value of 2. The relation is not a function because there is not exactly 1 value of P for every value of z. Sting 2x +5y +1=03x + 7y= 1 A gene that affects fruit fly head size is a maternal effect gene. The gene exists as a dominant allele H and a recessive allele h. A female fly with a normal head is mated to a true breeding fly with a small head. All of the offspring have small heads.1. What is the genotype of the female fly?2. What is the genotype of all offspring?3. What is the genotype of the maternal grandmother? Annie found three seashells at the beach. How much shorter is the Scotch Bonnet seashell than the combined lengths of the two Alphabet Cone seashells? Solve this problem any way you choose. Use a diagram to help.HELP IT'S A MISSING ASSIGNMENT! What is data center? Why is it important? What is the MAIN reason the author included the section "One Vast Nationwide Market"?(A)to summarize the effects of colonial unification on the formation and the economy of the United States(B)to describe in detail the colonies' communication and economic systems that most affected theAmerican Revolution(C)to reveal the strategies used by the colonists to win the American Revolution and form the United States(D)to describe the problems that arose after the American Revolution was over and the solutions tried sam ran 63,756 feet in 70 minutes. what is sams rate in miles per hour (there are 5,280 feet in one mile.) What advice would you give to students B and C to help them avoid factoring thistype of problem incorrectly in the future?Correct solved problemStudent A factoredthis expression correctly:-10x-24(x-12)(x+2)Factor: -10-24Incorrect solved problem:Sum of the integers does notequal the middle termStudent B did not factorthis expression correctly.-10x-24(x-4)(x+6)Incorrect solved problem:Sum of the integers does notequal the middle termStudent C did not factorthis expression correctly:-10-24(r+12)(x-2)**Day 4 will open once you post to the discussion board similarly dr. gawande examined the case of a care facility in la cross, wisconsin.what did they change? what were the two major findings of this study? What i the producer in this food chain lettuce, greenfly, ladybird, thrush, or cat 100 POINTS PLEASEE HELPPPUsing your knowledge and the sources provided, consider the uneven distribution of resources that served as a catalyst for the Columbian Exchange.In complete sentences describe at least one available resource from the Americas that had a lasting impact on the people of Europe, Africa, or Asia. Was it a positive or negative change? Describe, in detail, how that resource impacted the people of Europe, Africa, or Asia (past, present, or future).In complete sentences describe at least one available resource from the Europe, Africa, or Asia that had a lasting impact on the people of the Americas. Was it a positive or negative change? Describe, in detail, how that resource impacted the people of the Americas (past, present, or future). Read the passage and question carefully then select your answer.'Well, if I cannot keep Heathcliff for my friendif Edgar will be mean and jealous, I'll try to break their hearts by breaking my own. That will be a prompt way of finishing all, when I am pushed to extremity! But it's a deed to be reserved for a forlorn hope; I'd not take Linton by surprise with it. To this point he has been discreet in dreading to provoke me; you must represent the peril of quitting that policy, and remind him of my passionate temper, verging, when kindled, on frenzy. I wish you could dismiss that apathy out of that countenance, and look rather more anxious about me.'The stolidity with which I received these instructions was, no doubt, rather exasperating: for they were delivered in perfect sincerity; but I believed a person who could plan the turning of her fits of passion to account, beforehand, might, by exerting her will, manage to control herself tolerably, even while under their influence; and I did not wish to 'frighten' her husband, as she said, and multiply his annoyances for the purpose of serving her selfishness. Therefore I said nothing when I met the master coming towards the parlour; but I took the liberty of turning back to listen whether they would resume their quarrel together. He began to speak first.'Remain where you are, Catherine,' he said; without any anger in his voice, but with much sorrowful despondency. 'I shall not stay. I am neither come to wrangle nor be reconciled; but I wish just to learn whether, after this evening's events, you intend to continue your intimacy with''Oh, for mercy's sake,' interrupted the mistress, stamping her foot, 'for mercy's sake, let us hear no more of it now! Your cold blood cannot be worked into a fever: your veins are full of ice-water; but mine are boiling, and the sight of such chillness makes them dance.''To get rid of me, answer my question,' persevered Mr. Linton. 'You must answer it; and that violence does not alarm me. I have found that you can be as stoical as anyone, when you please. Will you give up Heathcliff hereafter, or will you give up me? It is impossible for you to be my friend and his at the same time; and I absolutely require to know which you choose.''I require to be let alone!' exclaimed Catherine, furiously. 'I demand it! Don't you see I can scarcely stand? Edgar, youyou leave me!'She rang the bell till it broke with a twang; I entered leisurely. It was enough to try the temper of a saint, such senseless, wicked rages! There she lay dashing her head against the arm of the sofa, and grinding her teeth, so that you might fancy she would crash them to splinters! Mr. Linton stood looking at her in sudden compunction and fear. He told me to fetch some water. She had no breath for speaking. I brought a glass full; and as she would not drink, I sprinkled it on her face. In a few seconds she stretched herself out stiff, and turned up her eyes, while her cheeks, at once blanched and livid, assumed the aspect of death. Linton looked terrified.'There is nothing in the world the matter,' I whispered. I did not want him to yield, though I could not help being afraid in my heart.'She has blood on her lips!' he said, shuddering.'Never mind!' I answered, tartly. And I told him how she had resolved, previous to his coming, on exhibiting a fit of frenzy. I incautiously gave the account aloud, and she heard me; for she started upher hair flying over her shoulders, her eyes flashing, the muscles of her neck and arms standing out preternaturally. I made up my mind for broken bones, at least; but she only glared about her for an instant, and then rushed from the room. The master directed me to follow; I did, to her chamber-door: she hindered me from going further by securing it against me.Catherine's request in the first paragraph ("you must represent...") reveals that she views the narrator asGroup of answer choicesa co-conspiratora counselora scapegoata servantan advocate Use a Double- or Half-Angle Formula to solve the equation in the interval \( [0,2 \pi \) ). (Enter your answers as a comma-separated list.) \[ \cos (\theta)-\sin (\theta)=\sqrt{2} \cdot \sin \left(\fr Answer the following question about drafting an effective research project: Which approach is most effective in drafting your research project?A.) presenting your own ideas along with information from your researchB.) stringing together information from different sources to provide an overview of the researchC.) offering your own opinions without acknowledging what others have said about the issueD.) allowing quotations to stand on their own without providing an interpretation The author believes that those who have no "central purpose in their life fall an easy prey topetty worries, fears, troubles, and self-pitying." (p. 53) Respond to this thought in well formed,complete sentences.