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
510152025

Find the median M of the data: 5, 15, 6, 29, 18, 3, 20, 9, 17, 14.

n = 10
M =
2.Easy
510152025303540

Find the mean x̄ of the data: 40, 2, 31, 37, 15, 2, 30, 11, 17.

n = 9
x̄ =
3.Medium
152025303540455055

Find the sample standard deviation s of the data: 19, 22, 44, 57, 46, 12, 43.

n = 7
s =
4.Medium
202530354045

Find the sample standard deviation s of the data: 16, 25, 25, 49, 43, 28, 21.

n = 7
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 60. What proportion P of values is below 575?

μ = 500σ = 60x = 575
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 60 and standard deviation 15. What proportion P of values is below 37.5?

μ = 60σ = 15x = 37.5
P =

Answer key

  1. 1. M = 14.5
  2. 2. x̄ = 20.56
  3. 3. s = 16.85
  4. 4. s = 11.97
  5. 5. P = 0.8944
  6. 6. P = 0.06681

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