a. Explanation Calculation: A sample of 10 people from Country A is considered. It is given that 80% of people from Country A believe that after someone died, some part of that person lives on, either in a next life on earth or in heaven. Binomial distribution: A random variable x is said to follow binomial distribution if x has only two outcomes: “success” and “failure”; the mass function of x is as follows: p ( x ) = ( n x ) p x q n − x , x = 0 , 1 , 2 , ... , n , Where n is the number of trials and p is the probability of success q = 1 − p . The mean is μ = n p and the standard deviation is σ = ( n p q ) . Define the random variable x as the number of people from Country A, who believe in life after death b. To determine Compute P ( x ≤ 7 ) . c. To determine Compute P ( x > 4 ) .

13th Edition

ISBN: 9780134080215

Author: James T. McClave, Terry T Sincich

Publisher: PEARSON

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Chapter 4, Problem 145ACB

To determine

Compute P(x=3).

To determine

Compute P(x≤7).

To determine

Compute P(x>4).

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Chapter 4, Problem 144ACB

Chapter 4, Problem 146ACI

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Compute P ( x = 3 ) .

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Compute P(x=3).

Compute P(x≤7).

Compute P(x>4).

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Chapter 4 Solutions