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Using a Distribution to Find Probabilities In
Chapter 4, Problem 25E(choose chapter or problem)
Problem 25E
Using a Distribution to Find Probabilities In Exercise, find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine whether the events are unusual. If convenient, use a table or technology to find the probabilities.
Cheating Forty-two percent of adults say that they have cheated on a test or exam before. You randomly select six adults. Find the probability that the number of adults who say that they have cheated on a test or exam before is (a) exactly four, (b) more than two, and (c) at most five.
Questions & Answers
QUESTION:
Problem 25E
Using a Distribution to Find Probabilities In Exercise, find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine whether the events are unusual. If convenient, use a table or technology to find the probabilities.
Cheating Forty-two percent of adults say that they have cheated on a test or exam before. You randomly select six adults. Find the probability that the number of adults who say that they have cheated on a test or exam before is (a) exactly four, (b) more than two, and (c) at most five.
ANSWER:
Answer
Step 1 of 1
(a)
We are asked to find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution.
Then determine whether the events are unusual.
If convenient, use a table or technology to find the probabilities.
We have given 42% of adults say that they have cheated on a test or exam before.
You randomly select six adults.
We are asked to find the probability that the number of adults who say that they have cheated on a test or exam before 1. Exactly four, 2. More than two, and 3. At most five.