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: 36, 9, 14, 26, 34, 2.

n = 6
x̄ =
2.Easy
5101520253035

Find the median M of the data: 3, 8, 9, 35, 38, 27, 14, 20, 36, 22.

n = 10
M =
3.Medium
384042444648505254

Find the sample standard deviation s of the data: 49, 39, 54, 38, 41, 47.

n = 6
s =
4.Medium
152025303540

Find the sample standard deviation s of the data: 42, 17, 38, 11, 36.

n = 5
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 170 and standard deviation 5. What proportion P of values is above 167.5?

μ = 170σ = 5x = 167.5
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 40. What proportion P of values is below 560?

μ = 500σ = 40x = 560
P =

Answer key

  1. 1. x̄ = 20.17
  2. 2. M = 21
  3. 3. s = 6.346
  4. 4. s = 13.85
  5. 5. P = 0.6915
  6. 6. P = 0.9332

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