Standard Deviation

Question 1

Fill in the missing values in the formula. What is the variance?

Revolt · Accepted Answer

12.405

Question 2

A diver records the depths, in feet, of her dives. They are: 60, 58, 53, 49, 60 The mean of the data set is 56.

Revolt · Accepted Answer

What does the numerator evaluate to?: 94; What does the denominator evaluate to?: 5; The variance equals:: 18.8

Question 3

Standard deviation: 2.08✔ 4.349.4X 18.8353.44

Revolt · Accepted Answer

✔ 4.34

Question 4

Sabine records the daily heights of a random sample of bamboo stalks, in inches. They are: 20, 19, 17, 16, 18, 15, 20, 21 Consider the formulas:

Revolt · Accepted Answer

Which formula should you use for variance?: A; Which formula should you use for standard deviation?: B

Question 5

Which formula should you use for standard deviation?

Revolt · Accepted Answer

B

Question 6

Question 6

Revolt · Accepted Answer

4.5; 2.12

Question 7

The mean of the data is 18.25.Find the variance. 2.123.93✔ 4.5

Revolt · Accepted Answer

✔ 4.5; 4.5; 2.12

Question 8

Find the standard deviation. 1.98✔ 2.12X 2.2520.25

Revolt · Accepted Answer

✔ 2.12

Standard Deviation Answers