Descriptive statistics worksheet with answers

Free printable Descriptive statistics worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________   Date: ____________

1.Easy
5101520253035

Find the median M of the data: 22, 35, 19, 2, 32, 25, 19, 31, 19.

n = 9
M =
2.Easy
10152025303540

Find the mean x̄ of the data: 40, 7, 15, 29, 25, 36, 17.

n = 7
x̄ =
3.Medium
343638404244464850

Find the sample standard deviation s of the data: 46, 50, 46, 39, 49, 34, 33.

n = 7
s =
4.Medium
10152025303540455055

Find the sample standard deviation s of the data: 42, 47, 44, 10, 53, 58.

n = 6
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 170 and standard deviation 15. What proportion P of values is below 140?

μ = 170σ = 15x = 140
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 60 and standard deviation 8. What proportion P of values is below 52?

μ = 60σ = 8x = 52
P =

Answer key

  1. 1. M = 22
  2. 2. x̄ = 24.14
  3. 3. s = 7.044
  4. 4. s = 16.91
  5. 5. P = 0.02275
  6. 6. P = 0.1587

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