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When Abdoulaye runs the 400 meter dash, his finishing times are normally distributed with a mean of 82 seconds and a standard deviation of 1 second. What percentage of races will his finishing time be
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When Abdoulaye runs the 400 meter dash, his finishing times are normally distributed with a mean of 82 seconds and a standard deviation of 1 second. What percentage of races will his finishing time be between 81 and 82 seconds, to the nearest tenth?

User Traskjd
by
6.7k points

2 Answers

1 vote

Answer: 34.1%

Explanation:

User Daniil Loban
by
7.3k points
3 votes

Answer:

34.13 %

z(lower) = -1 (.15866)

z(upper) = 0 (.5)

Explanation:

User Nijraj Gelani
by
7.0k points
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