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
1015202530

Find the median M of the data: 27, 14, 33, 20, 27, 10.

n = 6
M =
2.Easy
51015202530

Find the median M of the data: 6, 30, 25, 5, 32, 10, 29, 10, 10.

n = 9
M =
3.Medium
15202530354045505560

Find the sample standard deviation s of the data: 39, 57, 30, 12, 60, 32.

n = 6
s =
4.Medium
152025303540455055

Find the sample standard deviation s of the data: 15, 49, 34, 43, 15, 26, 59.

n = 7
s =
5.Hard
z −2−1012

Exam scores are normally distributed with mean 170 and standard deviation 20. Find the z-score z of a score of 140.

μ = 170σ = 20x = 140
z =
6.Hard
z −2−1012

Exam scores are normally distributed with mean 60 and standard deviation 8. Find the z-score z of a score of 72.

μ = 60σ = 8x = 72
z =

Answer key

  1. 1. M = 23.5
  2. 2. M = 10
  3. 3. s = 18.01
  4. 4. s = 16.91
  5. 5. z = −1.5
  6. 6. z = 1.5

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