A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 30 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 17 and 30 thousand miles in a year? The proportion of trucks that can be expected to travel between 17 and 30 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 either less than 15 or more than 40 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 15 or more than 40 thousand miles in a year is 26.80 %. (Round to two decimal places as needed.) c. How many miles will be traveled by at least 80% of the trucks? The number of miles that will be traveled by at least 80% 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 30 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 17 and 30 thousand miles in a year? The proportion of trucks that can be expected to travel between 17 and 30 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 either less than 15 or more than 40 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 15 or more than 40 thousand miles in a year is 26.80 %. (Round to two decimal places as needed.) c. How many miles will be traveled by at least 80% of the trucks? The number of miles that will be traveled by at least 80% of the trucks is miles. (Round to the nearest mile as needed.)

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Description: help me to understand where the 0.5 is coming from ad hot to get it e Q&A LibraryA trucking company determined that the distan...A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 30 th

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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Question

help me to understand where the 0.5 is coming from ad hot to get it

e Q&A Library
A trucking company determined that the distan...
A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 30 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 17 and 30 thousand miles in a year?
The proportion of trucks that can be expected to travel between 17 and 30 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 either less than 15 or more than 40 thousand miles in a year?
The percentage of trucks that can be expected to travel either less than 15 or more than 40 thousand miles in a year is 26.80 %.
(Round to two decimal places as needed.)
c. How many miles will be traveled by at least 80% of the trucks?
The number of miles that will be traveled by at least 80% of the trucks is
miles.
(Round to the nearest mile as needed.)

Get live help whenever you need from online tutors! Try bartleby tutor today →
given da19
H= 30 .
『ニエL.
P(17<00 < 30 ) = P(17 - 80
30 - 30
11
ユュ
= P(-1.181 <2<)
P(Z<O)- P(Z <-I.I818)
Step 2
P(Z<O)- P(Z<-1.1818)
0.5 -
0,1186
ニ
ニ
0.3814
pcre75) + Proczho) ~ }

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