You interview your family members at a picnic and record their ages and shoe sizes. The data is shown in the table. Which number describes how widely spread out their ages are?
A) 10
B) 12
C) 17.9
D) 37
x (age) y (size)
8 7
9 8
10 9
8 9
14 9
15 11
10 10
33 9
27 9.5
45 10.5
plz help desperate
The youngest is 8 and the oldest is 45.
If you are talking about the range of ages, 45 - 8 = ?
It would be D.
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If you want to describe how all of the values of a data set vary with a single number you need a measure of spread such as range.
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Range is the lowest number minus the highest number. Hope this helps.