Statistics
Problem 1
The distribution of ages in the United States in the year 2010 is given below. Intervals include the left endpoint but not the right; the number of people aged 100 or more was not zero but it was so small that it makes no difference to the table. You can assume that the ages are uniformly distributed within each interval.
Age (Years) Percent
05 6.6
515 13.3
1520 7.1
2030 13.8
3045 19.8
4560 20.9
6075 12.5
75100 6.0
Source: Adapted from Statistical Abstract 2012
: 3.0 points
Each part is worth 1 point.
a) Which interval contained more people: 515 or 1520?
5151520
b) Which interval was more crowded: 515 or 1520?
5151520
c) Were there more 5yearolds or 15yearolds?
5yearolds15yearolds

a) 515
b) 1520
c) 15yearoldsposted by hack
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