A trucking company determined that the đistance traveled per truck per year is normaßy đístrīibuted, with a mean of 40 thousand miles and a standard deviation of 11 thousand miles. Complete parts (a) through (d) below a. What proportion of trucks can be expected to travel between 27 and 40 thousand mles in a year? The proportion of trucks that can be expected to travel between 27 and 40 thousand miles ina year is 0.3814 (Round to four decimal places as needed) b. What percentage of trucks can be expected to travel elther less than 25 or more than 60 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 25 or more than 60 housand miles ina year is 12.13 (Round to two decimal places as needed) c. How many miles will be traveled by at least 75% of the trucks? The number of miles that wil be traveled by at least 75% of the trucks is mes (Round to the nearest mile as noeded)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Atrucking company determined that the distance travoled per truck per year is normaly distributed, with a mean of 40 thousand miles and a standard deviation of
11 thousand miles. Complete parts (a) through (d) below
n. What proportion of trucks can be expected to travel between 27 and 40 thousand miles in a year?
The proportion of trucks that can be expected to travel between 27 and 40 thousand miles in a year is 0.3814
(Round to four decimal places as needed.)
b. What percentage of trucks can be expected to travel elther less than 25 or more than 60 thousand niles in a year?
The percentage of trucks that can be expected to travel either less than 25 or more than 60 thousand miles in a year is 1213
(Round to two decimal places as needed)
c. How many miles will be traveled by at least 75% of the trucks?
The number of miles that will be traveled by at least 75% of the trucks is mies
(Round to the nearest mile as needed)
Transcribed Image Text:Atrucking company determined that the distance travoled per truck per year is normaly distributed, with a mean of 40 thousand miles and a standard deviation of 11 thousand miles. Complete parts (a) through (d) below n. What proportion of trucks can be expected to travel between 27 and 40 thousand miles in a year? The proportion of trucks that can be expected to travel between 27 and 40 thousand miles in a year is 0.3814 (Round to four decimal places as needed.) b. What percentage of trucks can be expected to travel elther less than 25 or more than 60 thousand niles in a year? The percentage of trucks that can be expected to travel either less than 25 or more than 60 thousand miles in a year is 1213 (Round to two decimal places as needed) c. How many miles will be traveled by at least 75% of the trucks? The number of miles that will be traveled by at least 75% of the trucks is mies (Round to the nearest mile as needed)
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