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Thursday, April 14, 2011

Finding Range and Mode on a Data

Just a note: My children are in 4th grade and below.

A new lesson for my 2nd grader today. Finding the range and mode on a data set.

To find the range...find the biggest or highest number and the least or smallest number. Then subtract the least from the most and you got the range on the number data.

Example: 40, 38, 28, 10, 5
use 40 and 5....40-5 = range (35)

To find the mode...just pick the numbers that is use the most.

Example: 16, 20, 70, 16, 11, 16, 16, 11
the easy way to find it, is to put the numbers in order (for younger child)
11, 11, 16, 16, 16, 20, 70
16 is used 3 times, meaning the number 16 is the mode.

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