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Find the range of the
following examples:
a) 8 ,12,17,15,20,9
b) 96, 74, 83, 81, 64
c) 100, 110 , 105, 103
89, 95, 83, 97, 85
83, 85, 89, 95, 97
97 - 83 = 14 is the range
Step 1: Arrange the numbers in order.
Step 2: Find the number in the middle, by crossing out one number at a time from each side...
a) 15,13,14,12,16 median =
b) 52, 55, 56, 61, 54, 56 median =
c) 18, 21, 13, 11, 8 median =
$4, $5, $5, $6, $9
$4, $5, $5, $6, $9
BEWARE: if you end up with 2 numbers in the middle ... ADD them and divide the total by 2 that will be the median
150, 160, 175, 180, 225
150, 160, 175, 180, 225
1. 26, 20, 23, 24, 27 __________
2. 171, 109, 128, 144 __________
3. 783, 248, 691 __________
Lets review:
HW time !!