A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 80 thousand miles and a standard deviation of 12 thousand miles. Complete parts (a) through (c) below. a. What proportion of trucks can be expected to travel between 66 and 80 thousand miles in a year? The proportion of trucks that can be expected to travel between 66 and 80 thousand miles in a year is (Round to four decimal places as needed.) b. What percentage of trucks can be expected to travel either less than 55 or more than 95 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 55 or more than 95 thousand miles in a year is %. (Round to two decimal places as needed.) c. How many miles will be traveled by at least 85% of the trucks? The amount of miles that will be traveled by at least 85% of the trucks is miles. (Round to the nearest mile as needed.)

A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 80 thousand miles and a standard deviation of 12 thousand miles. Complete parts (a) through (c) below. a. What proportion of trucks can be expected to travel between 66 and 80 thousand miles in a year? The proportion of trucks that can be expected to travel between 66 and 80 thousand miles in a year is (Round to four decimal places as needed.) b. What percentage of trucks can be expected to travel either less than 55 or more than 95 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 55 or more than 95 thousand miles in a year is %. (Round to two decimal places as needed.) c. How many miles will be traveled by at least 85% of the trucks? The amount of miles that will be traveled by at least 85% of the trucks is miles. (Round to the nearest mile as needed.)

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Description: I'm having a hard time understanding how to solve a,b,c in this problem looking for guidance to the solutions, thank you! A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 80 thousand

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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I'm having a hard time understanding how to solve a,b,c in this problem looking for guidance to the solutions, thank you!

A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 80 thousand miles and a standard deviation of 12 thousand miles. Complete parts (a) through (c) below.
a. What proportion of trucks can be expected to travel between 66 and 80 thousand miles in a year?
The proportion of trucks that can be expected to travel between 66 and 80 thousand miles in a year is
(Round to four decimal places as needed.)
b. What percentage of trucks can be expected to travel either less than 55 or more than 95 thousand miles in a year?
The percentage of trucks that can be expected to travel either less than 55 or more than 95 thousand miles in a year is
%.
(Round to two decimal places as needed.)
c. How many miles will be traveled by at least 85% of the trucks?
The amount of miles that will be traveled by at least 85% of the trucks is
miles.
(Round to the nearest mile as needed.)

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