logo
Lesson Materials

These are representations of mean and the median of a set of data.

    mean
median

Give a definition of the mean and median based on there animations.

Objective

6.19 The student will describe the mean, median, and mode as measures of central tendency, describe the range, and determine their meaning for a set of data.

 Part 1 Close 
    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.
 Part 2 Close 

Create two
5-value data sets that have the same means, the same medians, but different distributions of numbers.


 Hands-On Activities Close 

 Other Web Sites Close 

 Puzzles & Problems tangram Close 

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?