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
141618202224262830

Find the median M of the data: 30, 26, 14, 31, 15, 14.

n = 6
M =
2.Easy
5101520253035

Find the median M of the data: 9, 5, 6, 14, 11, 38, 15, 3, 17, 17.

n = 10
M =
3.Medium
20253035404550

Find the sample standard deviation s of the data: 38, 18, 46, 50, 38, 52.

n = 6
s =
4.Medium
1015202530354045

Find the sample standard deviation s of the data: 49, 44, 34, 41, 10.

n = 5
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 540?

μ = 500σ = 100x = 540
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 60 and standard deviation 15. What proportion P of values is above 75?

μ = 60σ = 15x = 75
P =

Answer key

  1. 1. M = 20.5
  2. 2. M = 12.5
  3. 3. s = 12.42
  4. 4. s = 15.31
  5. 5. P = 0.3446
  6. 6. P = 0.1587

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