Compute the standard deviation of the following set of data to the nearest whole number: 10, 15, 15, 20, 20

For the given set of numbers, the standard deviation is 4 (Rounding to the nearest whole number).

Step-by-step explanation:

1. The first step for finding the standard deviation is to find the mean of the set of numbers.

Mean = ( 10 + 15 + 15 + 20 +20)/5

Mean = 80/5 = 16

Mean = 16

2. The second step is to find the variance.

Let's recall that the variance is the sum of all the squared differences of each element of the set minus the mean over the number of terms less one, if we want to be strict.

Variance = [6² + 1² + 1² + (-4)² + (-4)²]/4

Variance = [36 + 1 + 1 + 16  + 16]/4

Variance = 70/4

Variance = 17.5

3. Now we'r ready to calculate the standard deviation.

Standard deviation = √ Variance

Standard deviation = √ 17.5

Standard deviation = 4.18

Standard deviation = 4 (Rounding to the nearest whole number)

1 3 5

step-by-step explanation:

i took the test: )

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.