Standard Deviation by Hand

A measure of the variability, or spread, of a distribution calculated by a method similar to the method for calculating the MAD (mean absolute deviation).

• standard deviation

• MAD

• mean

• mode

What is the standard deviation for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

What is the standard deviation for the data given:

• 293.67

• 15.87

• 17.14

• 41.98

What is the standard deviation on this Normal Curve?

• 6

• 12

• 34

• 18

What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• How often the most popular choices in a sample were picked compared to the least popular choices

Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?

• 0.59

• 0.41

• 0.35

• 0.22

What is the standard deviation for the data given:
{12, 13, 29, 18, 61, 35, 21}

• 293.67

• 15.87

• 17.14

• 41.98

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

• 8

• 4096

• 0

• 6.8

The term "snowstorms of note" applies to all snowfalls over 6 inches. The snowfall amounts for snowstorms of note in Utica, New York, over a four-year period are as follows: 7.1, 9.2, 8.0, 6.1, 14.4, 8.5, 6.1, 6.8, 7.7, 21.5, 6.7, 9.0, 8.4, 7.0, 11.5, 14.1, 9.5, 8.6 What are the mean and population standard deviation for these data, to the nearest hundredth?

• mean = 9.46; standard deviation = 3.74

• mean = 9.46; standard deviation = 3.85

• mean = 9.45; standard deviation = 3.74

• mean = 9.45; standard deviation = 3.85