Find: P(E1 and E2)
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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Transcribed Image Text:We use The Law of And, also known as The Multiplication Rule, when two things occur
simultaneously. When you want two things to happen at the same time, you multiple the probabilities of the
individual events to find out what the probabiilty of both events happening simultaneously is. Written
symbolically, The Law of And looks like this:
P(E1 and E2) = P(E1) * P(E2)
Let's say that the game show has adopted a more complicated probability structure. There
is a(n) 45% chance the big prize will be a toaster, a(n) 11% chance the big prize will be the
washer dryer, and a(n) 9% chance the big prize will be the vacation.
If the game show puts the big prize behind Door #1 25% of the time, behind Door #2 25% of the
time, and behind Door #3 50% of the time, then what are the chances of winning the
toaster oven if a contestant picks Door #1?
Given:
• P(E1) = 45%
• P(E2) = 25%
• P(E1 and E2) = P(E1)
P(E2)
Find: P(E1 and E2)
Report P(E1 and E2) as a percent rounded to two decimal places.
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