Answered: In a poll, each of a certain number of…

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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In a poll, each of a certain number of American adults was asked the question "If you had to choose, which ONE of the following sports would you say is your favorite?" Of the survey participants, 31% chose pro football as their favorite sport. The report also included the statement "Adults with household incomes of

$75,000 – < $100,000 (48%)

are especially likely to name pro football as their favorite sport, while love of this particular game is especially low among those in $100,000+ households (24%)."

Suppose that the percentages from this poll are representative of American adults in general. Consider the following events.

F	=	event that a randomly selected American adult names pro football as his or her favorite sport
L	=	event that a randomly selected American has a household income of $75,000 – < $100,000
H	=	event that a randomly selected American has a household income of $100,000+

(a)

Use the given information to estimate the following probabilities.

(i)

P(F)

(ii)

P(F|L)

(iii)

P(F|H)

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