Exam 99.7%
95%
+68%
The figure illustrates a normal
distribution for the prices paid for a
particular model of a new car. The mean
is $20,000 and the standard deviation is
$500
75
Use the 68-95-99.7 Rule to find the
7 percentage of buyers who paid between
$18,500 and $20,000.
71
Number of Car Buyers
3
33 2033 23
Price of a Model of a New Car
711
..
What percentage of buyers paid between $18,500 and $20,000?
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m2 %
n2