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Twenty-two percent of all liquid crystal displays (LCDs)

Basic Statistics for Business and Economics | 7th Edition | ISBN: 9780077384470 | Authors: Douglas Lind; William Marchal; Samuel Wathen ISBN: 9780077384470 64

Solution for problem 81E Chapter 5

Basic Statistics for Business and Economics | 7th Edition

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Basic Statistics for Business and Economics | 7th Edition | ISBN: 9780077384470 | Authors: Douglas Lind; William Marchal; Samuel Wathen

Basic Statistics for Business and Economics | 7th Edition

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Problem 81E

Problem 81E

Twenty-two percent of all liquid crystal displays (LCDs) are manufactured by Samsung. What is the probability that in a collection of three independent LCD purchases, at least one is a Samsung?

Step-by-Step Solution:

Answer:

Step 1 of 1:

(a)

22% of all LCDs are manufactured by Samsung.

We are asked to find the probability that in a collection of three independent LCD purchases at least one is a Samsung.

Let  denote the event that the LCD purchases is Samsung.

We need to find

Using the independence rule of the probability.

The probability the all three independent LCD purchases is Samsung is,

 

 

The probability that at least one is a Samsung is

Hence the probability that in a collection of three independent LCD purchases at least one is a Samsung is


Step 2 of 1

Chapter 5, Problem 81E is Solved
Textbook: Basic Statistics for Business and Economics
Edition: 7
Author: Douglas Lind; William Marchal; Samuel Wathen
ISBN: 9780077384470

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Twenty-two percent of all liquid crystal displays (LCDs)