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Mathematics, 25.03.2021 17:00 mimithurmond03
Terri Vogel, an amateur motorcycle racer, averages 129.01 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.26 seconds . The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. (Source: log book of Terri Vogel) Let X be the number of seconds for a randomly selected lap.
Required:
a. In words, define the random variable X.
b. X ~ ( , )
c. Find the percent of her laps that are completed in less than 130 seconds.
d. The fastest 3% of her laps are under
e. The middle 80% of her laps are from seconds to seconds.
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Terri Vogel, an amateur motorcycle racer, averages 129.01 seconds per 2.5 mile lap (in a 7 lap race)...
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