Terri Vogel, an amateur motorcycle racer, averages 129.55 seconds per 2.5 mile lap (in a...
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Terri Vogel, an amateur motorcycle racer, averages 129.55 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.27 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. Round all answers to 4 decimal places where possible.a. What is the distribution of X? X - N(b. Find the proportion of her laps that are completed between 130.89 and 132.28 seconds.c. The fastest 2% of laps are underd. The middle 70% of her laps are from
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