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Back to Summary Statistics: Measures of Center

Exercise 3

Avg difficulty 2.5

You recorded the time in seconds it took for 8 participants to solve a puzzle. The times were:

15.218.819.319.720.221.822.129.4

  1. Find the mean, including units.

  2. Find the median, including units.

  3. Based on the mean and the median, would you expect the distribution to be symmetric, skewed left, or skewed right? Explain.

Lee et al., Math in Society, §3.3 Summary Statistics: Measures of Center, Exercise 3

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Adapted from Math in Society © 2018–2024 Portland Community College Math Instructors. Licensed under CC BY-SA 4.0. Source: Math in Society. Imported at revision 68ee43c.