Sample Standard Deviation

What is the standard deviation for the data given:

• 6.89

• 10.1

• 7.26

• 9

What is the standard deviation for the data given:

• 293.67

• 15.87

• 17.14

• 41.98

Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

What is the standard deviation of the distribution?

• 1010

• 20

• 60

• √20

Click on the symbols that relate to standard deviations.

What is the standard deviation of the distribution shown in this image?

Mathematical Equivalence

ON

The normal curve shown represents the sampling distribution of a sample mean for sample size n = 25, selected at random from a population with standard deviation sd. Which of the following is the best estimate of the standard deviation of the population, sd ?75

• 3

• 6

• 15

• 30

• 75

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1

• 2

• 3

• 4

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

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