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.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy
5101520253035

Find the median M of the data: 16, 25, 27, 39, 14, 3, 5, 19, 30.

n = 9
M =
2.Easy
5101520253035

Find the mean x̄ of the data: 8, 5, 35, 35, 21, 36, 19, 24, 7.

n = 9
x̄ =
3.Medium
25303540455055

Find the sample standard deviation s of the data: 35, 21, 56, 34, 55, 58, 52.

n = 7
s =
4.Medium
202530354045

Find the sample standard deviation s of the data: 47, 24, 19, 29, 16, 23.

n = 6
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 170 and standard deviation 15. What proportion P of values is above 192.5?

μ = 170σ = 15x = 192.5
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 50 and standard deviation 10. What proportion P of values is below 40?

μ = 50σ = 10x = 40
P =

Answer key

  1. 1. M = 19
  2. 2. x̄ = 21.11
  3. 3. s = 14.34
  4. 4. s = 11.06
  5. 5. P = 0.06681
  6. 6. P = 0.1587

Full step-by-step solutions: practise this topic on examproblems.com.