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: 40, 10, 39, 19, 30, 11, 24, 14, 10, 11.

n = 10
M =
2.Easy
51015202530

Find the mean x̄ of the data: 31, 16, 32, 29, 7, 3, 23, 24, 15, 3.

n = 10
x̄ =
3.Medium
152025303540455055

Find the sample standard deviation s of the data: 41, 13, 48, 26, 55, 34.

n = 6
s =
4.Medium
152025303540455055

Find the sample standard deviation s of the data: 19, 57, 25, 39, 14, 34, 37.

n = 7
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 50 and standard deviation 5. What proportion P of values is above 53?

μ = 50σ = 5x = 53
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 50 and standard deviation 12. What proportion P of values is above 32?

μ = 50σ = 12x = 32
P =

Answer key

  1. 1. M = 16.5
  2. 2. x̄ = 18.3
  3. 3. s = 15.25
  4. 4. s = 14.4
  5. 5. P = 0.2743
  6. 6. P = 0.9332

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