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
51015202530

Find the median M of the data: 22, 27, 3, 11, 19, 30.

n = 6
M =
2.Easy
10152025303540

Find the mean x̄ of the data: 23, 8, 40, 39, 39, 17.

n = 6
x̄ =
3.Medium
10152025303540455055

Find the sample standard deviation s of the data: 46, 10, 19, 30, 10, 50, 58.

n = 7
s =
4.Medium
25303540455055

Find the sample standard deviation s of the data: 25, 43, 43, 23, 55.

n = 5
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 50. What proportion P of values is above 475?

μ = 500σ = 50x = 475
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 452?

μ = 500σ = 40x = 452
P =

Answer key

  1. 1. M = 20.5
  2. 2. x̄ = 27.67
  3. 3. s = 19.74
  4. 4. s = 13.54
  5. 5. P = 0.6915
  6. 6. P = 0.1151

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