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: 37, 13, 33, 36, 25, 39, 18, 8.

n = 8
M =
2.Easy
5101520253035

Find the median M of the data: 36, 9, 7, 19, 39, 5, 18, 6.

n = 8
M =
3.Medium
15202530354045505560

Find the sample standard deviation s of the data: 34, 54, 60, 14, 36, 43, 34.

n = 7
s =
4.Medium
3035404550

Find the sample standard deviation s of the data: 26, 36, 26, 53, 42, 39, 38.

n = 7
s =
5.Hard
z −2−1012

Exam scores are normally distributed with mean 500 and standard deviation 100. Find the z-score z of a score of 400.

μ = 500σ = 100x = 400
z =
6.Hard
z −2−1012

Exam scores are normally distributed with mean 500 and standard deviation 25. Find the z-score z of a score of 531.3.

μ = 500σ = 25x = 531.3
z =

Answer key

  1. 1. M = 29
  2. 2. M = 13.5
  3. 3. s = 15.09
  4. 4. s = 9.388
  5. 5. z = −1
  6. 6. z = 1.25

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