The positive difference between the largest and smallest values in a data set
Eg. 6, 2, 9, 4, 3 - data set
2, 3, 4, 6, 9 - ordered from least to greatest
9 - 2 = 7
The range is 7
Eg. -8, -1, -3, -5
-8, -5, -3, -1
(-1) - (18) = 7
The range is 7
Outliers -
A value that is much smaller or larger than the other data values
A data set man have one or more outliers or no outliers
* In other words, it's just like finding something that doesn't belong
*In this case, you are looking for numbers that have a big difference between the other numbers
Find the range-
a) 7, 4, 3, 6, 2, 5, 8, 3
2, 3, 3, 4, 5, 6, 7, 8
8 - 2 = 6
The range is 6
b) 11, 8, 8, 5, 7, 6, 7, 6, 6
5, 6, 6, 6, 7, 7, 8, 8, 11
11 - 5 = 6
The range is 6
c) -4, 3, -1 , 0, 2
-4, -1, 0, 2, 3
3 - (-4) = 7
The range is 7
Find the outliers-
a) 18, 19, 79, 17, 20, 12 - 12, 17, 18, 19, 20, 79 - The range is 79
b) 14, 14, 16, 15, 1, 16 - 1, 14, 14, 15, 16, 16 - The range is 1
c) 98, 202, 99, 91, 2, 95, 89, 88, 94 - 2, 88, 89, 91, 94, 95, 98, 99, 202 - The range is 2 and 202
Page 437 - 439, # 1- 16 .... IS HOMEWORK!
*Reminder.. there is a math quiz tomorrow on Number of The Day, all 25 questions!
