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
10152025303540

Find the median M of the data: 8, 28, 40, 7, 29, 28, 29, 24.

n = 8
M =
2.Easy
5101520253035

Find the mean x̄ of the data: 3, 35, 17, 2, 9, 29, 16, 37.

n = 8
x̄ =
3.Medium
152025303540455055

Find the sample standard deviation s of the data: 52, 32, 29, 14, 57, 13.

n = 6
s =
4.Medium
32343638404244464850

Find the sample standard deviation s of the data: 46, 42, 50, 32, 43.

n = 5
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 70 and standard deviation 5. What proportion P of values is below 76.25?

μ = 70σ = 5x = 76.25
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 100. What proportion P of values is above 700?

μ = 500σ = 100x = 700
P =

Answer key

  1. 1. M = 28
  2. 2. x̄ = 18.5
  3. 3. s = 18.52
  4. 4. s = 6.693
  5. 5. P = 0.8944
  6. 6. P = 0.02275

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