Calculate variance and standard deviation

Question 1

Find the population standard deviation of 3, 2, 3, 3, 4, 11. Give 2 decimal places.

Answer 

Question 2

Find the variance of 30, 32, 31, 25, 32 (treat them as the whole population).

Answer 

Question 3

Find the population standard deviation of 4, 16, 5, 16, 3, 11. Give 2 decimal places.

Answer 

Question 4

Find the variance of 31, 28, 29, 27, 25 (treat them as the whole population).

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Question 5

Find the population standard deviation of 5, 8, 15, 8, 13, 16. Give 2 decimal places.

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Question 6

Find the variance of 13, 6, 13, 12, 11 (treat them as the whole population).

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Question 7

Find the population standard deviation of 12, 2, 19, 19, 14, 8. Give 2 decimal places.

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Question 8

Find the variance of 9, 9, 8, 7, 7 (treat them as the whole population).

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Question 9

Find the population standard deviation of 20, 2, 17, 10, 6, 20. Give 2 decimal places.

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Question 10

Find the variance of 20, 12, 18, 16, 14 (treat them as the whole population).

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Question 11

Find the population standard deviation of 6, 13, 13, 15, 4, 13. Give 2 decimal places.

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Question 12

Find the variance of 22, 24, 23, 26, 25 (treat them as the whole population).

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Question 13

Find the population standard deviation of 5, 3, 3, 19, 17, 11. Give 2 decimal places.

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Question 14

Find the variance of 25, 32, 31, 32, 30 (treat them as the whole population).

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Question 15

Find the population standard deviation of 13, 7, 8, 16, 11, 12. Give 2 decimal places.

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Question 16

Find the variance of 7, 6, 9, 8, 5 (treat them as the whole population).

Answer