The following data points are last week's revenues (in thousands of dollars) for the
5 Herman's Hoagies locations.

5,6,5,10,9
Find the standard deviation of the data set.
Round answers to nearest hundreth.

3.14 thousand dollars

Step-by-step explanation:

Standard deviation is the average distance of your data values from the mean (basically, how far off you were from the center). We calculate standard deviation or σ by taking each value, subtracting it from the mean, squaring it, then dividing by the mean.

First, we need to find the mean, which is the sum of all values / number of values.

5 + 6 + 5 + 10 + 9 = 35 / 5 = 7

Take the absolute value of the difference of each value from 7:

5 - 7 = 2

6 - 7 = 1

5 - 7 = 2

10 - 7 = 3

9 - 7 = 2

Square each of these values and add them together:

2^2 + 1^2 + 2^2 + 3^2 + 2^2 = 22

Divide the sum by the mean:

22 / 7 = 3.14

The standard deviation is 3.14 thousand dollars.

2.10

Step-by-step explanation:

Mean: (5+6+5+10+9)/5

= 7

Sum of squares:

5²+6²+5²+10²+9²

= 267

Variance = 267/5 - 7²

= 4.4

sd = sqrt(4.4)

sd = 2.097617696

45 degres

step-by-step explanation:

sorey if i hav bad engelish im bad engelish

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: