Unit 3 Review

What does standard deviation mean?

• Spread from the mean

• middle value of the data

• most frequent data value

• Spread from the median

What is the standard deviation of the following data:

5 9 31 24 18 29 19 22 28

• 22

• 8.9

• 20.5

• 79.21

What is the variance of the following data:

5 9 31 24 18 29 19 22 28

• 22

• 8.9

• 20.5

• 79.21

Find the mean of the following data

• 8.16

• 12.82

• 12.28

• 8.61

Find the standard deviation of the following data

• 8.16

• 12.82

• 12.28

• 8.61

What is included in the 5 number summary?

• Mean, Standard Deviation, Q1, Q2, Q3

• Min, Max, P25, P50, P75

• Mean, Min, Max, Med, Q1

• Min, Max, Q1, Med, Q3,

Find the 5 number summary of the following data:

4, 9, 12, 16, 16, 18, 19, 22, 25, 27

• 4, 12, 17, 22, 27

• 16.8, 10, 7.09, 4, 27

• 16.8, 17, 7.09, 4, 27

What percentile is 14?

5, 7, 7, 12, 14, 17, 21, 29, 31, 35, 43

• 41st percentile

• P40

• 40th Percentile

• P41

What percentile is 43?

5, 7, 7, 12, 14, 17, 21, 29, 31, 35, 43

• 95th percentile

• P95

• 100th Percentile

• P100

What number corresponds to P67?

5, 7, 7, 12, 14, 17, 21, 29, 31, 35, 43

• 25

• 21

• 29

• 30