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 mean x̄ of the data: 27, 2, 16, 22, 13, 20, 5, 32, 37, 27.

n = 10
x̄ =
2.Easy
101520253035

Find the median M of the data: 17, 36, 27, 23, 8, 28, 30, 29, 27, 18.

n = 10
M =
3.Medium
152025303540

Find the sample standard deviation s of the data: 14, 44, 30, 19, 35.

n = 5
s =
4.Medium
25303540455055

Find the sample standard deviation s of the data: 50, 21, 45, 41, 56, 39, 59.

n = 7
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 100 and standard deviation 5. What proportion P of values is below 102?

μ = 100σ = 5x = 102
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 50 and standard deviation 15. What proportion P of values is above 80?

μ = 50σ = 15x = 80
P =

Answer key

  1. 1. x̄ = 20.1
  2. 2. M = 27
  3. 3. s = 12.1
  4. 4. s = 12.7
  5. 5. P = 0.6554
  6. 6. P = 0.02275

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