Every customer in a restaurant is served water. I represents a randomly selected customer that has water with ice and L represents a randomly selected customer that has water with lemon. The probability of the events are P(I)=0.65, P(L)=0.35, and P(I and L)=0.2. What is the value P(I or L)? Show your work. From multiple random samples, if the probability of customers with lemon increases by 0.03, then the probability of customers with ice and lemon increases by 0.02. Explains what happens to P(I or L).

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Every customer in a restaurant is served water. 

I represents a randomly selected customer that has water with ice and L represents a randomly selected customer that has water with lemon.

The probability of the events are P(I)=0.65, P(L)=0.35, and P(I and L)=0.2.

What is the value P(I or L)? Show your work.

From multiple random samples, if the probability of customers with lemon increases by 0.03,

then the probability of customers with ice and lemon increases by 0.02.

Explains what happens to P(I or L).

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