Problem#5SELF 6.8 Toby's Trucking Company determined that theTest distance traveled per truck per year is normally distrib-uted, with a mean of 50 thousand miles and a standard deviation of12 thousand miles.a. What proportion of trucks can be expected to travel between34 and 50 thousand miles in a year?b. What percentage of trucks can be expected to travel either lessthan 30 or more than 60 thousand miles in a year?c. How many miles will be traveled by at least 80% of the trucks?d. What are your answers to (a) through (c) if the standard devia-tion is 10 thousand miles?

We will convert the given normal distribution into standard normal distribution by applying,

Answered: Problem#5 SELF 6.8 Toby's Trucking…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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