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
51015202530

Find the mean x̄ of the data: 11, 14, 32, 13, 21, 2, 4.

n = 7
x̄ =
2.Easy
5101520253035

Find the mean x̄ of the data: 39, 17, 2, 38, 26, 30, 37, 7, 25.

n = 9
x̄ =
3.Medium
1520253035404550

Find the sample standard deviation s of the data: 42, 18, 17, 53, 14.

n = 5
s =
4.Medium
283032343638404244

Find the sample standard deviation s of the data: 37, 42, 34, 28, 45.

n = 5
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 170 and standard deviation 12. What proportion P of values is below 188?

μ = 170σ = 12x = 188
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 25. What proportion P of values is below 470?

μ = 500σ = 25x = 470
P =

Answer key

  1. 1. x̄ = 13.86
  2. 2. x̄ = 24.56
  3. 3. s = 17.57
  4. 4. s = 6.686
  5. 5. P = 0.9332
  6. 6. P = 0.1151

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