7.16 The student will create and solve problems involving the measures of central tendency (mean, median, mode) and the range of a set of data.

Activities

Online Activities

  • Plot It! Click to build blocks of data and view how the mean, median and mode change as numbers are added to the plot.
  • Grinch Here are some notes and a quiz with a Dr. Seuss touch.
  • Bargraph Create a bar chart to work out your average weekly shopping bill.

Other Web Sites

  • BBC Site This is a Train Race Game. Try all three levels.
  • ExploreLearning Teachers have to assign the Mean, Median, Mode to their classes.
  • Larson´s Software Students need to be enrolled by their teachers. Click on the Advanced Statistics and Data Analysis, then click on Mean, Median, Mode.

Lesson 5-3: Central Tendencies

Part 1

    Create two
  1. 5-value data sets that have the same means but different medians.

  2. 5-value data sets that have the same medians but different means.

  3. 5-value data sets that have the same means, the same medians, but with different range of numbers.

Part 2

In his NPR radio program “A Prairie Home Companion,” Garrison Keillor describes the mythical town of Lake Wobegon as a place where “all the women are strong, all the men are good-looking, and all the children are above average.” The average score on a recent mathematics test given to a class of 20 students at Wobegon Middle School was 85.

  1. Is it possible that every student in the class got above the average score on the test?

  2. What is the largest number of students who could have scored above average?
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