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: 25, 32, 37, 13, 30, 36, 22, 5, 27, 10.

n = 10
x̄ =
2.Easy
5101520253035

Find the mean x̄ of the data: 10, 3, 14, 21, 39, 28, 13, 6, 6, 8.

n = 10
x̄ =
3.Medium
30354045505560

Find the sample standard deviation s of the data: 54, 60, 60, 38, 26.

n = 5
s =
4.Medium
253035404550

Find the sample standard deviation s of the data: 54, 24, 45, 22, 34.

n = 5
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 60 and standard deviation 10. What proportion P of values is above 55?

μ = 60σ = 10x = 55
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 75. What proportion P of values is below 462.5?

μ = 500σ = 75x = 462.5
P =

Answer key

  1. 1. x̄ = 23.7
  2. 2. x̄ = 14.8
  3. 3. s = 15.06
  4. 4. s = 13.68
  5. 5. P = 0.6915
  6. 6. P = 0.3085

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