Suppose that a recent poll found that 50 ​% of adults in a certain country believe that the overall state of moral values is poor. If a survey of a random sample of 15 adults in this country is conducted in which they are asked to disclose their feelings on the overall state of moral​ values, complete parts​ (a) through​ (e) below.

Answers

Answer 1

Answer: 3.75

Step-by-step explanation:

P=0.50, n=15

np= 0.5x15 gives 7.5

n(1-p)= 15x(1-0.5)=7.5

Both are greater than 5

Then Mean, u=np;15x0.5=7.5

Standard deviation, √np(1-p)

15x0.5(0.5)= 3.75


Related Questions

Which of the following correctly solves this equation? ( − 6 ) 2 − ( 6 ) ( 6 ) = 36 ( − 6 ) ( − 2 ) = 12 ( − 6 ) ( − 6 ) = 36 ( − 6 ) ( − 6 ) = − 36

Answers

The correct solution are:  ( − 6 ) ( − 2 ) = 12 and  ( − 6 ) ( − 6 ) = 36 .

Addition Sign Rules

Here it is important to remember the rules for the  addition of integers numbers:

+  +   Add  Final result (+) - Final result (+)  

-   -   Add  Final result (-) - Final result (-)  

+  -   Subtract - Final result (the sign of the integer having a greater value)

-   +  Subtract - Final result (the sign of the integer having a greater value)

Multiplication Sign Rules

The rules for multiplication of numbers are:

  +  +  or -   -

The result presents a positive sign (+) because the signs are the same.

  +  - or   -   +

The result presents a negative sign (-) because the signs are different.

For solving this question, you should apply the rules presented previously. And after that check, if your result is the same that the question gives.

Option1

        ( − 6 ) 2 − ( 6 ) ( 6 ) = 36

        -12 -(36) = -12 -36 = -48 -> It is not the solution given in the exercise because  -48 ≠ 36.

Option2

        ( − 6 ) ( − 2 ) =12

                12=12 -> It is the solution given in the exercise because  12=12.

Option3

      ( − 6 ) ( − 6 ) = 36

               36=36-> It is the solution given in the exercise because  36=36.

Option 4

       ( − 6 ) ( − 6 ) = − 36

            36≠ -36 -> It is not the solution given in the exercise because  36 ≠ -36.

Read more about rules for multiplication  here:

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Dawn and Mary work at Great Clips. They each make $11.50 per hour plus tips. Last weekend, Dawn worked x number of hours and earned $125 in tips. Mary worked y number of hours and earned $153 in tips. Dawn determined that using the expression 11.50x + 125 + 11.50y + 153 will calculate the amount the girls earned together last weekend. Select another expression the girls could use.Immersive Reader

Answers

Answer:

T=11.50(x +y) + 278

Step-by-step explanation:

in this problem we are looking at an alternative expression to the given expression for the total earning which is

Given data

T=11.50x + 125 + 11.50y + 153

let us collect like terms we have

T=11.50x + 11.50y + 153+ 125

T=11.50x + 11.50y +278

we can factor out 11.5 since it is common

T=11.50(x +y) + 278

The alternative expression the girls could use is

T=11.50(x +y) + 278

The two favorite plants in Mary's garden are 6.56 feet and 8 feet tall. What is the difference in height of the plants?

Answers

Answer:

The height difference is 1.44 feet

Step-by-step explanation:

8 feet (1 plant height) - 6.56 feet (1 plant height) = 1.44 feet (height difference)

what is the answer for
2s-8=2(s-2)

Answers

Answer:

No Solutions

Step-by-step explanation:

Equation:

2s - 8 = 2(s - 2)

2s - 8 = 2s - 4

2s = 2s + 4

No Solutions

the answer forit is no solution

????????????????????

Answers

Answer:

what do you not understand

Given Sine (t) = StartFraction 7 Over 25 EndFraction for StartFraction pi Over 2 EndFraction less-than t less-than pi, what is Cosine (t)?

Answers

Answer:

Answer is -24/25.

Step-by-step explanation:

Got it right on egde2020

The value of cos (t) is - (24/25), as per  the relation between the sine and cosine of an angle.

What is the relation between the sine and cosine of an angle?

For any angle 'Ф',  the relation between the sine and cosine of an angle is:

sin² (Ф) + cos² (Ф) = 1, when 0 < Ф < (π/2)

Given equation,

sin (t) = (7/25), for (π/2) < t < π

Here, 't' is in the second quadrant.

Therefore, sine is positive here.

However, cosine is negative there.

Therefore, the value of cos (t) is

= - √[1 - sin² (t)]

= - √[1 - (7/25)²]

= - √[1 - (49/625)]

= - √(576/625)

= - (24/25)

Learn about the relation between the sine and cosine of an angle here: https://brainly.com/question/8339068

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plz help will award brainliest

Answers

Answer:

After 5 hours.

35 bacteria cells.

Step-by-step explanation:

Andy’s population is represented by [tex]B=6x+5.[/tex]

Samantha’s population is represented by [tex]B=2^x+3[/tex]

Where B represents the total population given the number of hours x.

We want to find at what hour will their population be the same. We are told to use graphing technology.

Graphing them, we will get the graphs below.

Graphically, their population will be the same where the two graphs intersect.

So, we can see that they intersect at (5, 35).

Therefore, after 5 hours, the total number of bacteria cells for both experiments will be the same.

And the total number of bacteria at that time will be 35 bacteria cell.

what are the fractions that add up to 1
help plzz i will give u brainliest

Answers

Answer:

Things like:

2/9 + 7/9  = 9/9 = 1

3/4 + 1/4 = 4/4 = 1

If the number is the same for the numerator and denominator it adds up to 1.

More examples:

6/10 + 4/10 = 10/10 = 1

9/15 + 6/15 = 15/15 = 1

-15=10x-40x
what does x equal to

Answers

Answer:

0.5

Step-by-step explanation:

-15=-30x

-15/-30=0.5

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?

A. -7m - 8 = m - 4
B. -15m = -4m
C. -8 - 3m = 4 - m
D. -8 - 7m = -4 + m
E. m - 4 = -7m - 8
F. -3m - 8 = 4 - m

Answers

Answer: A

Explanation:

-2m - 5m - 8 = 3 + (-7) + m
-7m - 8 = 3 - 7 + m
-7m - 8 = -4 + m Or -7m - 8 = m - 4

use a number line to find the difference-6.5 - 2

Answers

Answer:

The answer would be -8.5

Step-by-step explanation:

If you start at -6.5, to find the difference (subtract) you would move left two whole spaces to get to -8.5.

On the other hand, if you were to start at 6.5 and subtract 2, your answer would be 4.5.

It depends if your first number is negative or positive.

HELP PLS FAST PLEASE HELP ME AHHH PLEASE

Answers

Answer:

Function 1 has a greater slope and greater y-intercept than Function 2.

Step-by-step explanation:

Function 1

Slope: 1/3

y-intercept: 2

Function 2

Slope: -2/4

y-intercept: -2

which is the equation of a line that has a slope of 1/2 and passes through Point (2,-3 )?​

Answers

Answer:

  y = 1/2x - 4

Step-by-step explanation:

y = mx + b

-3 = 1/2(2) + b

-3 = 1 + b

b = -4

y = 1/2x - 4

HELP. Type the correct exponet 1/10,00= 10(?)

Answers

Answer:

100

Step-by-step explanation:

Use the formula an = d (n − 1) + aj to write a formula for the arithmetic sequence below.
2, 6, 10, 14, 18,

Answers

Answer:

[tex]a_{n}[/tex] = 4n - 2

Step-by-step explanation:

There is a common difference d between consecutive terms in the sequence, that is

6 - 2 = 10 - 6 = 14 - 10 = 18 - 14 = 4

This indicates the sequence is arithmetic with n th term

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = 4 , thus

[tex]a_{n}[/tex] = 2 + 4(n - 1) = 2 + 4n - 4 = 4n - 2

Multiply (10 + 2-8)(110 - 2-18)
A) -22
B)-246
C)10-8suqareroot2
D)10+8suqareroot2

Answers

Answer:

First Option (A) -22

Step-by-step explanation:

Answer:

a) 22

Step-by-step explanation:

just took it on edge

second problem is c!

if h(x)=3x + 4 , what is h(2x-3)

Answers

Answer:

h(2x-3) = 6X - 5

Step-by-step explanation:

So, the required function is  [tex]h(2x-3)=6x-5[/tex]

Mapping:

A mapping diagram is an image of two circles that shows the relationship between the input and output values.

Given function is,

[tex]h(x)=3x + 4[/tex]

Now, applying the given transformation into the given function

[tex]h(2x-3)=3(2x-3)+4\\h(2x-3)=6x-9+4\\h(2x-3)=6x-5[/tex]

Learn more about the topic mapping:

https://brainly.com/question/2565755

What combination of transformations is shown below?

Answers

Answer:

I think its Translation then reflection

Step-by-step explanation:

Help please..........

Answers

Answer:

no solution

Step-by-step explanation:

if you solve for x then you get x-x which leads you to -6=0 that is no true and undefined

x-6=x

answer

x=6

why? pag nilipag mo yung negative 6 sa kanan . magiging positive sign na sya

3. Eve wants to purchase a game console that costs $165. So far, she has saved $52 and plans to
save an additional $30 per week.

Answers

Answer:

If the question is how many weeks will it take to get the remaining 113.

Step-by-step explanation:

Then the answer is almost 4 weeks. 3 and 2/3 weeks.

PLEASE PLEASE PLEASE HELP ME

Answers

Answer:

8 cars

Step-by-step explanation:

8*50= 400

can someone help please ASAP?????????????

Answers

Answer:

B

Step-by-step explanation:

they are real numbers that are greater than 0 but less than 4

there are 15 male teachers in the school. there are 35 female teachers in the school

Answers

Answer:

There are total 50 teachers, 30% are male, 70% are female

Step-by-step explanation:

There is no specific question, but I just put the percentage of each gender teacher. Hope this is the question you were trying to find!

what is the average speed of a walker who walks 500m in 400 seconds

Answers

Answer:

1.25 meters a second

Step-by-step explanation:

Calculator

say we have ratios and i have to determine which one does not belong
12 : 18 2 to 3 6/9 18 : 21
so the ratio that does not belong is?

Answers

Answer:

18:21

Step-by-step explanation:

If you divide all of the ratios (12 divided by 18, etc) they all equal 0.66.. besides 18:21

Hope this helps!

For the function H(t) = 3t - 5
Find when H(t) = 46

Answers

Answer:

t = 17

Step-by-step explanation:

Plug in 46 for H(t) into the above equation and solve for t.

46 = 3t - 5 (add 5 to both sides)

51 = 3t (divide both sides by 3 to isolate t)

17 = t or t = 17

Can anyone help me identifying pounds and liters ;-;

Answers

Answer:

sure but can u help me ban 50070356 he or she is using my pfp as hers

Step-by-step explanation:

a number x increased by 10 is 102

Answers

Answer:

x = 10.2

Step-by-step explanation:

10.2 × 10 = 102...

Answer:

x+10=102

Step-by-step explanation:

the word "increased" signifies addition because of the value getting larger. the word "is" indicates an equal sign. therefore, the equation is x+10=102

Which number is both a perfect square and
perfect cube?

A) 9

B) 256

C) 64

D)512

Answers

C 64
A perfect cube of square is 64

Given line m is parallel to line n. What theorem or postulate justifies the statement? ∠1 ≅ ∠4

Answers

Answer:

corresponding angles postulate

Step-by-step explanation:

just took the test ;)

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