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
141618202224262830

Find the median M of the data: 29, 24, 24, 27, 22, 15, 14, 31.

n = 8
M =
2.Easy
5101520253035

Find the median M of the data: 5, 24, 36, 21, 24, 38, 22, 11.

n = 8
M =
3.Medium
1520253035404550

Find the sample standard deviation s of the data: 54, 47, 15, 47, 16, 44.

n = 6
s =
4.Medium
1520253035404550

Find the sample standard deviation s of the data: 11, 26, 43, 49, 35, 52.

n = 6
s =
5.Hard
z −2−1012

Exam scores are normally distributed with mean 70 and standard deviation 15. Find the z-score z of a score of 55.

μ = 70σ = 15x = 55
z =
6.Hard
z −2−1012

Exam scores are normally distributed with mean 50 and standard deviation 8. Find the z-score z of a score of 60.

μ = 50σ = 8x = 60
z =

Answer key

  1. 1. M = 24
  2. 2. M = 23
  3. 3. s = 17.1
  4. 4. s = 15.49
  5. 5. z = −1
  6. 6. z = 1.25

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