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Chapter 6: Q. 79 (page 358)

Bull's-eye! Lawrence likes to shoot a bow and arrow in his free time. On any shot, he has about a 10%chance of hitting the bull's-eye. As a challenge one day, Lawrence decides to keep shooting until he gets a bull's-eye. Let Y=the number of shots he takes.

Short Answer

Expert verified

The given statement is not correct, Y cannot be stated to follow the binomial distribution.

Step by step solution

01

Given Information

The likelihood of success p=10%=0.10

02

According to the given question

The random variable Y satisfies the following requirements.

1. The likelihood of success, i.e., the chance of hitting the bull's eye (p), which equals 0.44, is fixed.

2. There is no set number of hits.

3. Each shot is independent of the others.

4. There are two possible outcomes: he either hits or misses the bulls' eys.

All of the binomial criteria are not met in this case.

As a result, Y cannot be stated to follow the binomial distribution.

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Most popular questions from this chapter

Each entry in a table of random digits like Table Dhas probability $$ of being a 0 , and the digits are independent of one another. Each line of Table D contains 40 random

digits. The mean and standard deviation of the number of 0 s in a randomly selected line will be approximately

a. mean =0.1, standard deviation =0.05.

b. mean =0.1, standard deviation =0.1.

c. mean =4, standard deviation =0.05.

d. mean =4, standard deviation =1.90.

e. mean =4, standard deviation =3.60.

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