B. 76% of people believe in love at first sight. Suppose we take a random sample of 30 people. What is the probability that: 1. Exactly 20 of them believe in love at first sight? 2. 22 or more of them believe in love at first sight? 3. Fewer than 19 of them believe in love at first sight?

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CR: Chapter Review
Problem 5CC: a What is meant by an experiment? Sample space? b What is an event? c Define the probability of an...
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B. 76% of people believe in love at first sight. Suppose we take a random sample of 30 people.
What is the probability that:
1. Exactly 20 of them believe in love at first sight?
2. 22 or more of them believe in love at first sight?
3. Fewer than 19 of them believe in love at first sight?
4. Extra credit: Use your answer from #3 to answer this question: If you did repeated samples of 30
individuals from the larger population, how many samples would you expect to have to take to
find a group where fewer than 19 of them believe in love at first sight?
Transcribed Image Text:B. 76% of people believe in love at first sight. Suppose we take a random sample of 30 people. What is the probability that: 1. Exactly 20 of them believe in love at first sight? 2. 22 or more of them believe in love at first sight? 3. Fewer than 19 of them believe in love at first sight? 4. Extra credit: Use your answer from #3 to answer this question: If you did repeated samples of 30 individuals from the larger population, how many samples would you expect to have to take to find a group where fewer than 19 of them believe in love at first sight?
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