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Exercise 2

Avg difficulty 2.5

The amount of commercials in an hour of television varies by channel. The total length (in minutes) of all commercials from 8 pm to 9 pm for some randomly selected broadcast and cable channels on a weekday evening were:

1012.75799.756.512.512.58.751710.52

  1. Find the mean, inluding units.

  2. Find the median, including units.

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

Lee et al., Math in Society, §3.3 Summary Statistics: Measures of Center, Exercise 2

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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.