21. MEAN AND STANDARD DEVIA-TION For groups of five drivers, findthe mean and standard deviation forthe numbers of drivers who say thatthey text while driving.Number of Drivers WhoSay That They Text WhileDriving012345P(x)0.0660.2380.3440.2490.0900.013

The probability distribution is given as follows, Number of Drivers Who Say That They Text While…

Answered: 21. MEAN AND STANDARD DEVIA- TION For…

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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Plz state exactly what I am putting in the brackets here.
Q2/ The number of hours worked by 10 employees of small building firm during a week were: 45 46 34 47 44 42 46 42 43 44 Calculate the mean, median and standard deviation of the hours worked by the employees
1- Computer Literacy Test If 80% of job applicants are able to pass a computer literacy test, find the mean, variance, and standard deviation of the number of people who pass the examination in a sample of 150 applicants. 2- Fuel Efficiency for U.S. Light Vehicles The average fuel efficiency of U.S. light vehicles (cars, SUVS, minivans, vans, and light trucks) for 2005 was 21 mpg. If the standard deviation of the population was 2.9 and the gas ratings were normally distributed, what is the probability that the mean mpg for a random sample of 25 light vehicles is under 20? Between 20 and 25? 3- Elementary School Teachers Women comprise 80.3% of all elementary school teachers. In a random sample of 300 elementary chers, what is the probability that less than three-fourths are women?
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21. MEAN AND STANDARD DEVIA- TION For groups of five drivers, find the mean and standard deviation for the numbers of drivers who say that they text while driving. Number of Drivers Who Say That They Text While Driving 0 1 2 3 4 5 P(x) 0.066 0.238 0.344 0.249 0.090 0.013