A sample of n = 5 scores has M = 20 and s2 = 4. What is the sample standard deviation?

O 20
O 5
02
O 16

Answers

Answer 1
5 I think sorry if I’m wrong
Answer 2

The sample standard deviation is 2. Therefore, the correct answer is option C.

Given that, a sample of n=5 scores has M=20 and s²=4.

The standard deviation is the fundamental measure of data point dispersion from the mean of a given data set. If the data points on a given distribution are more spread out, the standard deviation will be greater. In contrast, if the data points are close together, the standard deviation will be low.

The standard deviation is simply the square root of the variance;

Here, [tex]s=\sqrt{4}[/tex]

[tex]s=2[/tex]

Therefore, the correct answer is option C.

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Related Questions

Find the value of x and then identify the measure of each of the angles.

Answers

Answer:

x = 21

Upper angle has a measure of 69°

Lower angle has a measure of 21°

Step-by-step explanation:

The two angles form a right angle ( indicated by the little square )

A right angle has a measure of 90 degrees.

This means that (x + 48) + x must equal 90

Note that we've just created an equation that we can use to solve for x

We now solve for x using that equation

x + 48 + x = 90

combine like terms

2x + 48 = 90

subtract 48 from both sides

2x = 42

divide both sides by 2

x = 21

We then plug in x to find the measures of the angles

x + 48

x = 21

21 + 48

= 69

The other angle simply equals 21°

Answer:

x = 21°

(x + 48°) = 69=

Step-by-step explanation:

x + 48° + x = 90°

2x +48° = 90° Subtract 48° in both sides

2x = 42° Divide both sides by 2:

x = 21°

Can someone please explain the steps?

Answers

Answer:

There all 67 degrees

Step-by-step explanation:

Answer:

y= 119

Step-by-step explanation:

From the diagram we know that opposite angles are the same so we can assume that y and its opposite angle will be the same too

All inner angles of a parallelogram add up to 360

61+61=122

360-122=238

238/2=119

Solve each equation.

1) | 2x - 4 | = 10

2) -5 | -4x + 4 | - 7 = -67

Show all work please :D

Answers

[tex](1)\\\\|2x-4| =10\\\\\implies 2x-4 = 10~~ \text{or}~~ 2x -4 = -10\\\\\implies x = \dfrac{14}2 = 7 ~~\text{or}~~ x = -\dfrac{6}2=-3\\\\\\(2)\\\\-5|-4x+4|-7 = -67\\\\\implies -5|-4x+4| = -67 +7 = -60\\\\\implies |-4(x-1)| = \dfrac{-60}{-5}=12\\\\\implies 4|x-1| = 12\\\\\implies |x-1| =\dfrac{12}4 = 3\\\\\implies x-1 = -3~~\text{or}~~ x-1=3\\\\\implies x = -2~~ \text{or}~~ x = 4[/tex]

5. Simplify the expression 49. (1 point)
O24.5
O 6.5
06
OT
6. Which of the following inequalities is true? (1 point)

Answers

Answer:

7

Step-by-step explanation:

the square root of 49 is 7 since 7 x 7 = 49

WILL MARK BRAINLIEST TO FIRST ANSWER!!!!!!
NO LINKS WILL BE ACCEPTED!!!!!!
Which relationship has a zero slope? A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 2, 2, 2, 2. A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 3, 1, negative 1, negative 3. A coordinate plane with a straight line starting at (negative 5, negative 5) and passing through the origin, and ending at (5, 5) A coordinate plane with a straight line starting iat (negative 2, 5) and passing the x-axis at (negative 2, 0), and ending at (negative 2, 5).

Answers

Answer:

y=3 x=1  

Step-by-step explanation:

Took the quiz

What am I supposed to say on here the question is in the picture

Answers

The answer is Function A. This is because Function A has a higher y-intercept than Function B. #brainliest

Find the solution
Y = -3x - 5

Answers

Answer:
-5/3

Explanation:

3. * + 6 = 10 (1 point)
5
044
30
O20
0-20

Answers

Step-by-step explanation:

I think its b.30 but I'm not sure

Find the values of the variables in the similar triangles very much high points
I know for a fact that x=2

Answers

Answer:

x = 2, m = 3.75, a = 1.25

Step-by-step explanation:

Solve by comparing ratios of corresponding sides:

(x + 4 + 2) / (4 + 2) = (3 + 6 + 3)/(6 + 3) (x + 6)/6 = 12/9x + 6 = 8x = 2

m/(6 + 3) = 5/(3 + 6 + 3)m / 9 = 5/12m = 9*5/12m = 3.75

a/3 = 5/12a = 3*5/12a = 1.25

I need help on this assignment

Answers

[tex]\text{Apply Pythagorean theorem,}~ \text{Hypotenuse side}^2 = \text{Opposite}^2 + \text{Adjacent side}^2[/tex]

[tex]12^2 =y^2 +8^2\\\\\implies y^2 = 12^2 -8^2 \\\\\implies y^2 = 80\\\\\implies y =\sqrt{80} = \sqrt{16\times 5}= 4\sqrt 5~~ \text{Units}[/tex]

U need to search up the hypotenuse theory

HELP FAST LAST QUESTION ON TEST!!! The front lawn of NPHS has a roped off area of 2x? - 11x + 15. What are the
possible dimensions of the roped off area?

Answers

Answer:the area is = the length*the width

2x^2-11x+15= (2x-5)* the width

you have to divide 2x^2 - 11 x + 15 at 2x-5

2x^2-11x+15   |  2x-5

-2x*2+5x                 x-3

-------------

/       -6x+15

       +6x-15

-----------------

         /   /

the answer is X-3

Step-by-step explanation:

given f(x)=1/4(5-x)2 what is the value of f(11)

Answers

Answer:

f(x)=1/4(5-x)²

Step-by-step explanation:

f(11)=1/4(5-11)²

1/4(-6)²

1/4(36)

=9

Answer:

=9

Step-by-step explanation:

;0



Erika ran 3/8 mile. Maria ran 3/4 mile. Who
ran farther?


Answers

Answer:

Maria, because 3/4=.75    

Step-by-step explanation:

3/4=.75

3/8=0.375

The bigger number is 3/4

if 21 and 35 are two members of a pythagorean triple, what is the third member?

Answers

Answer:

28

Step-by-step explanation:

21^2+28^2=35^2

The third number of the Pythagorean triplet as c = 40.82.

What is Pythagorean triplet? What is a mathematical function, equation and expression?                Pythagorean triplet : A Pythagorean triplet consists of three positive integers a, b, and c, such that a² + b² = c².function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is that 21 and 35 are two members of a Pythagorean triplet.

We can write the Pythagorean triplet as -

a² + b² = c²

c² = a² + b²

c² = (21 x 21) + (35 x 35)

c² = 441 + 1225

c² = 1666

c = √1666

c = 40.82

Therefore, the third number of the Pythagorean triplet as c = 40.82.

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moira solved rubik's cube in 3 minutes and 30 seconds. what is moira's solving rate?

Answers

In the context of rubiks cube solving the rate at which one can solve a rubiks cube is determined by the number of cubes solved and the time taken

In this question we were told that moira solved a rubiks cube in 3 minutes 30 seconds

Let us convert time total time to seconds

3 minutes 30  in seconds = 3*60+ 30 = 180+30 = 210 seconds

Hence  Moira rate  = 1 rubiks cube/210 seconds

Learn more about rate:

https://brainly.com/question/25184007

James makes $44,059 per year, how much would he make monthly?

Answers

Answer:

$3671.58

Step-by-step explanation:

Take the annual salary and divide it by the number of months

With a headwind a plane traveled 128 km in 2h. The return trip with a tail wind took 24 min less. Find the air speed of the plane. A. 64 km/h B. 72km/h C. 80km/h D. 88km/h E. 96km/h

Answers

Answer:

B

Step-by-step explanation:

128/2=64 mph

(the rate)

2 hr= 120 min

so.. 120-24= 96

and with the wind speed is r-c and without it is r+c because your going against the wind.

solve for c. 3c+2=-10 and thank you

Answers

Answer:

c= -4

Step-by-step explanation:

Given that:.3c+2 = -10

⇛ 3c = -10 - 2

⇛3c = -12

⇛c = -12:3 = -12/3

.°. c = -4 Ans .

Myra took a picture of the sky one afternoon when two jet airplanes appeared to draw a pair of parallel lines with their vapor trails. The vapor trails from two other jets flying from another direction crossed over the parallel trails. She printed her picture and labeled the angles and lines. Parallel lines c and d are cut by transversals a and b. All angles are described clockwise, from uppercase left. The intersection of lines c and b form angles: 2, 4, 3, 1. The intersection of lines d and b form angles: 6, 8, 7, 5. The intersection of lines c and a form angles: 10, 12, 11, 9. The intersection of lines a and d form angles: 14, 16, 15, 13. Assume lines c and d are parallel and Angle2 measures 98°. Which statements are true? Select three options. MAngle3 = mAngle6 = 98° mAngle3 = mAngle14 = 98° mAngle4 = mAngle8 = 82° mAngle4 = mAngle12 = 82° mAngle5 = mAngle8 = 82°.

Answers

The following statements are true:

<3 = m<6 = 98 degrees (alternate interior angles)m<4  = m<8 = 82degrees (corresponding angles)m<5 = m<8 = 82 degrees (vertical angles)

Find the diagram attached.

Given the parameter:

m<2 = 98 degrees

From the diagram, the following are true:

m<2 = m<3 = 98 degrees (vertical angles)

m<3 = m<6 = 98 degrees (alternate interior angles)

The sum of m<3 and m<4 is 180 degrees.

m<3 + m<4 = 180

m<4 = 180 - m<3

m<4 = 180 = 98

m<4 = 82 degrees

m<4  = m<8 = 82degrees (corresponding angles)m<5 = m<8 = 82 degrees (vertical angles)

Learn more on angles here: https://brainly.com/question/24607467

Answer: A, C, E

Step-by-step explanation: God/Edge

Please show me what the lines would look like on this piece wise function

Answers

Answer: The graph is shown below

Explanation:

The f(x) function is piecewise, and it has a double identity depending on what x is.

If x is between -6 and 1, excluding -6 but including 1, then f(x) = -6. This is the same as saying y = -6. This produces a horizontal flat line from x = -6 to x = 1. Note the open hole at x = -6 to indicate it's not part of the graph. In contrast, the closed hole at x = 1 is included.

The second piece says that y = -2x+5 when x is between 1 and 6, excluding both endpoints. We have open holes at each endpoint.

So to summarize, the f(x) function is a collection of two different functions depending on what the x input is. We only draw a small piece of each function based on the intervals provided by x.

Which set of coordinates satisfies the system of equations y = x − 3 and y = -2x + 1?

Answers

Answer:

  C

Step-by-step explanation:

The first equation has a y-intercept of -3. Only one line does.

The second equation has a y-intercept of +1. Only one line does.

The point of intersection of those two lines is the point labeled C. That has coordinates that satisfy both equations. (The point is on both lines.)

Give the equation of the line in slope intercept form. y = 3x + [?] =​

Answers

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day. My name is Galaxy and I will be helping you today.

We can solve this problem in a single step, we just need to know how equations like this are set up.

Equations in slope intercept form are set up in [tex]y=mx+b[/tex] form. With [tex]m[/tex] being the slope of the line, and [tex]b[/tex] being the y intercept.

In your problem, we need to find the value of [tex]b[/tex], which is the y intercept.

The y intercept is what is y when x is zero. We can find that by looking at the graph supplied.

When we look at the line, we can see that it hits the x axis when y is negative two, therefore the intercept is [tex](0,-2)[/tex].

Since we know that, we can reconstruct our equation with this information, we already know the slope so we can add in -2 to get our answer.

[tex]y=3x-2[/tex]

This would be our final answer.

Cheers!

Find the equation of the tangent to the circle, whose equation is given below, at the point (-4,2).
(x+2)^2+(y−3)^2=5

Answers

The equation of the tangent is y = –2x – 6

The step by step process is in the pic attached.

The top part was cropped out, it says the centre point is (–2,3)

Every day after school, Albert and his sister Valentina play their favorite video game, Wizarding Legends. The goal of the game is to earn power points by defeating goblins. There is a proportional relationship between the number of goblins defeated, x, and the number of power points earned, y.

Answers

Answer:

So um what's the question?

Step-by-step explanation:

Which relation is not a function?
A
{(10,−5),(8,−4),(4,−2),(2,0)}

B
{(1,−2),(1,−4),(1,0),(1,8)}

C
{(−3,9),(−2,4),(−1,1),(1,1)}

D
{(3,10),(5,−5),(6,6),(9,11)}

Answers

Answer: B repeating domain is 1

Step-by-step explanation: Repeat domain is not a function. Hope this help:)

Can someone Please help me on this easy math problem

Answers

Step-by-step explanation:

Equation of a straight line

y = mx + c, m is the slope, and c the intercept

points (3,7) x = 3, y = 7, c = 1

7 = m × 3 + 1

7 = 3m + 1

3m = 7 - 1

3m = 6

m = 6/3

m = 2

Help! Will give brainliest!

Answers

Answer:

The domain of "Per Night Stay" would amount to $125 surcharge by day amounting to $3000 total cost function

Step-by-step explanation:

If Kareem spends 40% of the interest on a new recliner, what amount did he spend on the recliner?

Answers

he spent 400 dollars

5x+15=50
Solve for X
PLEASE SHOW YOUR WORK

Answers

Answer:

you do:

50-15= 35

35÷5=7

so x=7

The average number of students in ten 5th grade classes is 27. Which of the following can be extrapolated from this information?
A
The average weight gain of a kitten on a newly developed brand of kitten food is also 0.3 lbs. a month.
B
The average weight gain of an adult dog on a newly developed brand of adult dog food is also 0.3 lbs. a month.
C
The average weight loss of a puppy on a newly developed brand of puppy food is 0.3 lbs. per month.
D
none of the above

Answers

D Extending the application of (a method or conclusion, especially one based on statistics) to an unknown circumstance by assuming that existing trends will continue or that similar procedures will be applicable
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