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
5101520253035

Find the median M of the data: 4, 25, 38, 6, 38, 13, 20, 33, 36, 37.

n = 10
M =
2.Easy
5101520253035

Find the median M of the data: 23, 26, 36, 14, 7, 3.

n = 6
M =
3.Medium
10152025303540455055

Find the sample standard deviation s of the data: 55, 10, 45, 45, 11, 52.

n = 6
s =
4.Medium
202530354045

Find the sample standard deviation s of the data: 46, 42, 19, 34, 33, 28.

n = 6
s =
5.Hard
z −2−1012

Exam scores are normally distributed with mean 50 and standard deviation 5. Find the z-score z of a score of 44.

μ = 50σ = 5x = 44
z =
6.Hard
z −2−1012

Exam scores are normally distributed with mean 100 and standard deviation 12. Find the z-score z of a score of 85.6.

μ = 100σ = 12x = 85.6
z =

Answer key

  1. 1. M = 29
  2. 2. M = 18.5
  3. 3. s = 20.39
  4. 4. s = 9.688
  5. 5. z = −1.2
  6. 6. z = −1.2

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