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
101520253035

Find the median M of the data: 23, 37, 32, 21, 31, 32, 26, 8, 17.

n = 9
M =
2.Easy
510152025

Find the median M of the data: 13, 25, 9, 21, 3, 19, 3, 10.

n = 8
M =
3.Medium
30354045505560

Find the sample standard deviation s of the data: 27, 60, 58, 30, 37, 34.

n = 6
s =
4.Medium
152025303540455055

Find the sample standard deviation s of the data: 56, 46, 33, 12, 33.

n = 5
s =
5.Hard
z −2−1012

Exam scores are normally distributed with mean 500 and standard deviation 75. Find the z-score z of a score of 440.

μ = 500σ = 75x = 440
z =
6.Hard
z −2−1012

Exam scores are normally distributed with mean 60 and standard deviation 10. Find the z-score z of a score of 66.

μ = 60σ = 10x = 66
z =

Answer key

  1. 1. M = 26
  2. 2. M = 11.5
  3. 3. s = 14.37
  4. 4. s = 16.54
  5. 5. z = −0.8
  6. 6. z = 0.6

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