Exploring mean and median

The first instance of  is under the Probability and statistics Math Mission. This exercise explores the relationship between mean and median.

Types of Problems
There is one type of problem in this exercise:


 * 1) Control the mean and median: This problem has a number line with several dots on it. The student is asked to move the dots to adjust the mean and median to given values.Expmean.png

Strategies
This exercise is easy to get accuracy badges because the manipulative displays the current mean and median while you are moving dots. The speed badges vary because of the time that is required to move the dots. I would say easy with a stylus, medium with a mouse and hard with a touchpad.
 * 1) Don't submit until you have the right mean and median, you can read it from the line.
 * 2) It is easiest to move high dots or low dots to control the median first.
 * 3) After the median is set, it is easiest to move high dots or low dots to drag the mean to it's desired value.