A bag of fast-food sandwriches contains two bamburgers, four cheesebungers. and three chicken burgers. If Wyatt ordered a cheescourger and a chicken burger, what is the probability that a) the first sandwich selected will be one of his choices? b) neither of the first two sandwiches will be among Wyau's choices?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A bag of fast-food sandwriches contains two bamburgers, four cheesebungers. and three chicken burgers. If Wyatt ordered a cheescourger and a chicken burger, what is the probability that a) the first sandwich selected will be one of his choices? b) neither of the first two sandwiches will be among Wyau's choices?
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Step 1

The information provided in the question are as follows :

Number of hamburgers = 2

Number of cheeseburgers = 4

Number of chicken burgers = 3

So, the total number of sandwiches are given by, 

Total sandwiches = hamburger + cheeseburger + chicken burgers 

Total sandwiches = 2 + 4 + 3

Total sandwiches = 9

 

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