Question 10 <> Terri Vogel, an amateur motorcycle racer, averages 129.98 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.3 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 127.94 and 130.9 seconds. c. The fastest 3% of laps are under seconds. seconds to seconds. d. The middle 70% of her laps are from

Question 10 <> Terri Vogel, an amateur motorcycle racer, averages 129.98 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.3 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 127.94 and 130.9 seconds. c. The fastest 3% of laps are under seconds. seconds to seconds. d. The middle 70% of her laps are from

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter5: Exponential And Logarithmic Functions

Section5.2: Applications Of Exponential Functions

Problem 50E

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