Standard Deviation & Chebyshev's Theorem Extra Practice

What does this symbol represent?

• Standard Deviation
• Variance
• Mean Absolute Deviation
• Sigma

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

What does this symbol represent?

• Variance
• Standard Deviation
• Mean Absolute Deviation
• Sigma

Tags

CCSS.HSS.ID.A.4

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

• 8

• 4096

• 0

• 6.8

Tags

CCSS.8.EE.A.2

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

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Four data sets are shown below.

Set 1: {10, 19, 38, 50, 51}

Set 2: {5, 21, 26, 39, 51}

Set 3: {9, 38, 50, 50, 51}

Set 4: {5, 28, 28, 28, 51}

Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?

• 511.33

• 22.61

• 438.48

• 20.94

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

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

Tags

CCSS.HSS.ID.A.4

The mean age of sales people in ABC Dept. Store is 30 years with a standard deviation of 6 years. Between which two age limits must at least 75% of the data lie?

• 24 - 36 years

• 18 - 42 years

• 12 - 48 years

• 6 - 54 years

Tags

CCSS.HSS.ID.A.4

The mean age of sales people in ABC Dept. Store is 30 years with a standard deviation of 6 years. Between which two age limits must at least 75% of the data lie? WHAT IS THE K VALUE ONLY?

• 2

• 3

• 4

• 5

• 6

Tags

CCSS.HSS.ID.A.4

The average of the number of trials it took a sample of mice to learn to traverse a maze was 12. the standard deviation was 2. Using Chebyshev's theorem, find the minimum percentage of of data values that will fall in the range of 4 to 20 trials.

• 75%

• 88.89%

• 93.75%

• 96%

• 97.22%

Tags

CCSS.HSS.ID.A.4