Question
When Zahra runs the 400 meter dash, her finishing times are normally distributedwith a mean of 84 seconds and a standard deviation of 1.5 seconds.
When Zahra runs the 400 meter dash, her finishing times are normally distributedwith a mean of 84 seconds and a standard deviation of 1.5 seconds. Using theempirical rule, what percentage of races will her finishing time be between 81 and 87seconds?
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Precalculus
Authors: Braja M Das, David Cohen, Theodore B Lee, David Sklar
7th Edition
1133386482, 9781133386483
