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 median M of the data: 5, 22, 34, 15, 36, 16, 4, 33, 16.

n = 9
M =
2.Easy
681012141618202224

Find the mean x̄ of the data: 15, 11, 24, 5, 22, 12, 11.

n = 7
x̄ =
3.Medium
1520253035404550

Find the sample standard deviation s of the data: 38, 35, 51, 20, 14.

n = 5
s =
4.Medium
25303540

Find the sample standard deviation s of the data: 28, 23, 21, 42, 33, 37.

n = 6
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 500 and standard deviation 100. What proportion P of values is above 300?

μ = 500σ = 100x = 300
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 100 and standard deviation 12. What proportion P of values is above 82?

μ = 100σ = 12x = 82
P =

Answer key

  1. 1. M = 16
  2. 2. x̄ = 14.29
  3. 3. s = 14.77
  4. 4. s = 8.165
  5. 5. P = 0.9772
  6. 6. P = 0.9332

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