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# Use the Poisson distribution to find the | Ch 5.5 - 13BSC ISBN: 9780321836960 18

## Solution for problem 13BSC Chapter 5.5

Elementary Statistics | 12th Edition

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Problem 13BSC

Use the Poisson distribution to find the indicated probabilities.

World War II Bombs In Exercise we noted that in analyzing hits by V-l buzz bombs in World War II, South London was partitioned into 576 regions, each with an area of 0.25 km2. A total of 535 bombs hit the combined area of 576 regions.

a. Find the probability that a randomly selected region had exactly 2 hits.

b. Among the 576 regions, find the expected number of regions with exactly 2 hits.

c. How does the result from part (b) compare to this actual result: There were 93 regions that had exactly 2 hits?

Exercise

Notation In analyzing hits by V-l buzz bombs in World War II, South London was partitioned into 576 regions, each with an area of 0.25 km2. A total of 535 bombs hit the combined area of 576 regions. Assume that we want to find the probability that a randomly selected region had exactly two hits. In applying Formula 5-9, identify the values of µ, x, and e. Also, briefly describe what each of those symbols represents.

Step-by-Step Solution:
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Problem 13BSC

Step1 of 1:

We have In Exercise we noted that in analyzing hits by V-l buzz bombs in World War II, South London was partitioned into 576 regions, each with an area of 0.25 km2. A total of 535 bombs hit the combined area of 576 regions.

Consider a random variable “x” follows poisson distribution with sample size “n” and parameter “ ”.

i,e.X P( )

Probability mass function of poisson distribution is given by

P(x) = , x = 0,1,2,...,n.

Where, e = 2.71828.

And  .

a).

The probability that a randomly selected region had exactly 2 hits is given by P(x = 0)...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

Since the solution to 13BSC from 5.5 chapter was answered, more than 863 students have viewed the full step-by-step answer. This full solution covers the following key subjects: regions, hits, bombs, Find, area. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. The answer to “Use the Poisson distribution to find the indicated probabilities.World War II Bombs In Exercise we noted that in analyzing hits by V-l buzz bombs in World War II, South London was partitioned into 576 regions, each with an area of 0.25 km2. A total of 535 bombs hit the combined area of 576 regions.a. Find the probability that a randomly selected region had exactly 2 hits.b. Among the 576 regions, find the expected number of regions with exactly 2 hits.c. How does the result from part (b) compare to this actual result: There were 93 regions that had exactly 2 hits?ExerciseNotation In analyzing hits by V-l buzz bombs in World War II, South London was partitioned into 576 regions, each with an area of 0.25 km2. A total of 535 bombs hit the combined area of 576 regions. Assume that we want to find the probability that a randomly selected region had exactly two hits. In applying Formula 5-9, identify the values of µ, x, and e. Also, briefly describe what each of those symbols represents.” is broken down into a number of easy to follow steps, and 176 words. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. The full step-by-step solution to problem: 13BSC from chapter: 5.5 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM.

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