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
20253035

Find the median M of the data: 25, 17, 39, 25, 30, 28, 17.

n = 7
M =
2.Easy
101520253035

Find the mean x̄ of the data: 10, 28, 23, 17, 37, 27, 34.

n = 7
x̄ =
3.Medium
20253035404550

Find the sample standard deviation s of the data: 27, 22, 41, 52, 19.

n = 5
s =
4.Medium
152025303540455055

Find the sample standard deviation s of the data: 55, 46, 36, 43, 43, 48, 13.

n = 7
s =
5.Hard
z −2−1012

A quantity is normally distributed with mean 70 and standard deviation 15. What proportion P of values is below 79?

μ = 70σ = 15x = 79
P =
6.Hard
z −2−1012

A quantity is normally distributed with mean 100 and standard deviation 5. What proportion P of values is below 105?

μ = 100σ = 5x = 105
P =

Answer key

  1. 1. M = 25
  2. 2. x̄ = 25.14
  3. 3. s = 13.92
  4. 4. s = 13.45
  5. 5. P = 0.7257
  6. 6. P = 0.8413

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