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: 24, 24, 39, 20, 14, 7, 10, 37, 39.

n = 9
M =
2.Easy
10121416182022242628

Find the median M of the data: 14, 19, 28, 13, 17, 10, 14.

n = 7
M =
3.Medium
152025303540455055

Find the sample standard deviation s of the data: 25, 29, 37, 12, 57, 46.

n = 6
s =
4.Medium
202530354045505560

Find the sample standard deviation s of the data: 21, 52, 56, 60, 41, 18.

n = 6
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 170 and standard deviation 12. What proportion P of values is below 160.4?

μ = 170σ = 12x = 160.4
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 70 and standard deviation 12. What proportion P of values is below 82?

μ = 70σ = 12x = 82
P =

Answer key

  1. 1. M = 24
  2. 2. M = 14
  3. 3. s = 15.95
  4. 4. s = 18.08
  5. 5. P = 0.2119
  6. 6. P = 0.8413

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