Finding Mean and Standard Deviation of a Sample

What is the standard deviation for the data population given:

{12, 13, 29, 18, 61, 35, 21}

• 293.67

• 15.87

• 17.14

• 41.98

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5

• 6

• 9

• 11

What is the standard deviation for the data given:

• 6.89

• 10.1

• 7.26

• 9

Which of the following is a measure of variability?

• mean

• median

• mode

• standard deviation

Standard Deviation is a measure of spread, which represents the average of the distance between individual data values and the mean.

• True

• False

Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

Given a variance of 64, what is the standard deviation?

• 8

• 4096

• 0

• 6.8

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

If the standard deviation of a data set is 4, what is the variance?

• 2

• 16

• 4

• 8