MATHEMATICS HIGH SCHOOL

The shoe size for all the pairs of shoes in a person’s close are recorded. 7,7,7,7,7,7,7,7,7,7A. What is the mean?
B. What is the standard deviation?

Answers

Answer 1
Answer:

Answer:

To find the mean (average) and standard deviation of the given shoe sizes, you can follow these steps:

A. Mean (Average):

The mean is calculated by adding up all the values and then dividing by the number of values.

Mean = (Sum of all values) / (Number of values)

In this case, the sum of all the shoe sizes is:

7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 70

And there are 10 values.

Mean = 70 / 10 = 7

So, the mean (average) shoe size is 7.

B. Standard Deviation:

The formula for the standard deviation of a set of values can be quite complex, but for this small dataset with all values being the same, the standard deviation is essentially zero because there is no variability between the values.

In mathematical terms:

Standard Deviation = 0

So, the standard deviation for the given shoe sizes is 0.

Related Questions

I cant figure this out pleas help
Solve the inequality.-8d < 48
Factors of -36 that add to 13
Simple Question: What is 5x6-3/9?
What is the sum of the square root of 100 and the square root of 400

A function is shown in the table.. . . xg(x). −22. −1−3. 02. 117. . . Which of the following statement is a true for this function? The function is increasing from x = −2 to x = −1..
The function is increasing from x = 0 to x = 1..
The function is decreasing from x = −1 to x = 0..
The function is decreasing from x = 0 to x = 1..

Answers

Only one statement is correct:
B ) The function is increasing from x = 0 to x = 1
Explanation: g ( 0 ) = 2, g ( 1 ) = 17,  2 < 17. 

Answer:

The statement that is true for the function is:

The function is increasing from x = 0 to x = 1.

Step-by-step explanation:

We are given a table of values for the function g(x) as:

              x                g(x)

              -2                 2

               -1                 -3

                0                 2

                1                  17

    By looking at the table of values of the function g(x) we have:

The function g(x) is firstly decreasing from x=-2 to x=-1

Then it is increasing from x=-1 to x=1.

Hence, the statement that holds true from the given set of values of function g(x) is:

The function is increasing from x = 0 to x = 1.

( Since, the function takes the value at x=0 as g(x)=2

and the function takes the value at x=1 as g(x)=17)

Uh- I don't understand

Answers

Answer:

2

64

16000

3

5(I'm not 100 percent sure its 5 )

48

Step-by-step explanation:

hope this helps! :)

Write in simplest form - 8:20

Answers

To write this ratio in simplest form, we simply need to take all the common factors on both sides and divide.
For this one, we can see that both 8 and 20 are divisible by 2, so we will start with that.

8:20 = (8 / 2):(20 / 2) = 4:10

And these both still are divisible by 2 yet again, so we can continue dividing.

4:10 = (4 / 2):(10 / 2) = 2:5

And that's our answer.
8:20 in simplest form is 2:5.
Hope that helped! =)

What is 35 percent of 70

Answers

35 Percent of 70 is 24.5
We assume, that the number 70 is 100% - because it's the output value of the task. We assume, that x is the value we are looking for. If 70 is 100%, so we can write it down as 70=100%. We know, that x is 35% of the output value, so we can write it down as x=35%. Now we have two simple equations: 1.)70=100% 2.)x=35%where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that: 70/x=100%/35% Now we just have to solve the simple equation, and we will get the solution we are looking for.
To me, the best thing to do first is translate the question into math,
so that you can work with it.

-- "What"  means  "x "

-- "is" means  " = "·

-- "percent"  means  " /100"

-- "of"  means "times"

Translated into math, the question says:     

                                      x = 35/100  ·  70 

Clean up the right side of the equation and simplify it:

                                     x = (35 · 70) / 100

                                     x =    2450 / 100

                                     x = 24.5

How do you put 8.5% in a calculator

Answers

8.5% is the same as 0.085.
Remember % means divide by 100

Based on the information below, what are the values of x and y of the solution to the system of equations used to create the information? [A]=[4 -6 8 -2][Ax]=[38 -6 26 -2][Ay]=[4 38 8 26]x = -5, y = 2
x = -0.2, y = 0.5
x = 0.5, y = -0.2
x = 2, y = -5

Answers

The correct option is D. x = 2, y = -5. The values of x and y of the solution to the system of equations are 2, -5.

When solving a set of equations in mathematics, a matrix is a collection of integers or expressions.

The matrix A is

[A]=[4 -6 8 -2]

The matrix Ax is

[Ax]=[38 -6 26 -2]

The matrix Ay is

[Ay]=[4 38 8 26]

All of the matrices' determinant is

|A| = 40

|Ax| = 80

|Ay| = -200

The value of x is (|Ax|) /(|A|) = 80/(40) = 2

The value of y is ( |Ay|)/(|A|) = -200/(40) = -5

Therefore, the value of x and y is 2, -5. The correct option is D

Learn more about system of equations here

brainly.com/question/25869125

#SPJ1
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