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: 28, 2, 17, 36, 38, 18, 35, 6, 18, 11.

n = 10
M =
2.Easy
1015202530

Find the median M of the data: 18, 6, 34, 15, 19, 29, 33.

n = 7
M =
3.Medium
152025303540455055

Find the sample standard deviation s of the data: 12, 55, 53, 15, 58, 53, 37.

n = 7
s =
4.Medium
1520253035404550

Find the sample standard deviation s of the data: 11, 40, 16, 29, 37, 53, 34.

n = 7
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

A quantity is normally distributed with mean 100 and standard deviation 12. What proportion P of values is above 112?

μ = 100σ = 12x = 112
P =

Answer key

  1. 1. M = 18
  2. 2. M = 19
  3. 3. s = 19.59
  4. 4. s = 14.36
  5. 5. z = −1.2
  6. 6. P = 0.1587

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