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
16182022242628303234

Find the median M of the data: 34, 29, 24, 16, 22, 35.

n = 6
M =
2.Easy
10152025303540

Find the median M of the data: 16, 40, 30, 22, 10, 13, 23.

n = 7
M =
3.Medium
101520253035404550

Find the sample standard deviation s of the data: 43, 24, 10, 31, 51, 36, 32.

n = 7
s =
4.Medium
1520253035404550

Find the sample standard deviation s of the data: 24, 14, 34, 36, 53.

n = 5
s =
5.Hard
z −2−1012

Exam scores are normally distributed with mean 500 and standard deviation 75. Find the z-score z of a score of 462.5.

μ = 500σ = 75x = 462.5
z =
6.Hard
z −2−1012

A quantity is normally distributed with mean 50 and standard deviation 12. What proportion P of values is above 32?

μ = 50σ = 12x = 32
P =

Answer key

  1. 1. M = 26.5
  2. 2. M = 22
  3. 3. s = 13.2
  4. 4. s = 14.57
  5. 5. z = −0.5
  6. 6. P = 0.9332

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