Terri Vogel, an amateur motorcycle racer, averages 129.72 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.25 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 and 131.89 seconds. c. The fastest 2% of laps are under seconds.

Terri Vogel, an amateur motorcycle racer, averages 129.72 seconds per 2.5 mile lap (in a 7 lap race) with a standard deviation of 2.25 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 and 131.89 seconds. c. The fastest 2% of laps are under seconds.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Estimation

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Question

Terri Vogel, an amateur motorcycle racer, averages
129.72 seconds per 2.5 mile lap (in a 7 lap race) with
a standard deviation of 2.25 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 and 131.89 seconds.
c. The fastest 2% of laps are under
seconds.

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