Binomial Distribution Quiz
The question sheet
Reveal any answer as you study-
In the DVD rental table, what is the probability that a customer rents three DVDs?
- 0.12
- 0.07
- 0.24
- 0.03
Reveal answer
Answer: 0.12
Source evidence
PDF page 235: x P(x) 0 0.03 1 0.50 2 0.24 3 4 0.07 5 0.04
PDF page 235: b. Find the probability that a customer rents three DVDs.
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According to the DVD rental information, what is the five-video limit's effect on rentals?
- Nobody rents fewer than five
- Nobody rents more than five DVDs
- Everyone rents five DVDs
- Rentals are unlimited
Reveal answer
Answer: Nobody rents more than five DVDs
Source evidence
PDF page 235: per customer at Video To Go is given Table 4.5. There is five-video limit per customer at this store, so nobody ever rents more than five DVDs.
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In the Tet festivities survey, how many students does the reporter randomly survey?
- 18
- 25
- 382
- 12
Reveal answer
Answer: 12
Source evidence
PDF page 235: 58. A school newspaper reporter decides to randomly survey 12 students to see if they will attend Tet (Vietnamese New
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In the Tet survey, what percent of students attend Tet festivities based on past years?
- 28.1%
- 4%
- 36.94%
- 18%
Reveal answer
Answer: 18%
Source evidence
PDF page 235: Year) festivities this year. Based on past years, she knows that 18% of students attend Tet festivities. We are interested in the number of students who will attend the festivities.
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For the San Jose Sharks, what is the probability of winning any given game?
- 0.281
- 0.18
- 0.04
- 0.3694
Reveal answer
Answer: 0.3694
Source evidence
PDF page 235: Use the following information to answer the next two exercises: The probability that the San Jose Sharks will win any given game is 0.3694 based on a 13-year win history of 382 wins out of 1,034 games played (as of a certain date). An upcoming monthly schedule contains 12 games.
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How many games are in the Sharks' upcoming monthly schedule?
- 13
- 12
- 1,034
- 382
Reveal answer
Answer: 12
Source evidence
PDF page 235: Use the following information to answer the next two exercises: The probability that the San Jose Sharks will win any given game is 0.3694 based on a 13-year win history of 382 wins out of 1,034 games played (as of a certain date). An upcoming monthly schedule contains 12 games.
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In the Sharks problem, what does X represent?
- Number of games won in that month
- Total games played
- Games lost that month
- Win percentage
Reveal answer
Answer: Number of games won in that month
Source evidence
PDF page 235: Let X = the number of games won in that upcoming month.
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For the true-false quiz problem, how many questions does the student answer?
- Thirty-two
- Twenty-five
- Ten
- Twelve
Reveal answer
Answer: Ten
Source evidence
PDF page 235: 62. A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability
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In the multiple-choice exam problem, how many choices does each question have?
- Four
- Two
- Three
- Five
Reveal answer
Answer: Three
Source evidence
PDF page 236: 63. A student takes a 32-question multiple-choice exam, but did not study and randomly guesses each answer. Each question
PDF page 236: has three possible choices for the answer. Find the probability that the student guesses more than 75% of the questions correctly.
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In the multiple-choice exam problem, what fraction correct is the target?
- Exactly 50%
- More than 75%
- At least 70%
- At most 25%
Reveal answer
Answer: More than 75%
Source evidence
PDF page 236: 63. A student takes a 32-question multiple-choice exam, but did not study and randomly guesses each answer. Each question
PDF page 236: has three possible choices for the answer. Find the probability that the student guesses more than 75% of the questions correctly.
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In the flu advice-line problem, what percent of callers truly have the flu?
- 28.1%
- 4%
- 18%
- 30%
Reveal answer
Answer: 4%
Source evidence
PDF page 234: two per 1,000 babies in a healthy baby nursery. The number climbs to an average of 30 per 1,000 babies in an intensive care nursery. Suppose that 1,000 babies from healthy baby nurseries were randomly surveyed. Find the probability that exactly two babies were born deaf. Use the following information to answer the next four exercises. Recently, a nurse commented that when a patient calls the medical advice line claiming to have the flu, the chance that he or she truly has the flu (and not just a nasty cold) is only about 4%. Of the next 25 patients calling in claiming to have the flu, we are interested in how many actually have the flu.
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In the flu problem, how many of the next patients are of interest?
- 25
- 12
- 15
- 11
Reveal answer
Answer: 25
Source evidence
PDF page 234: two per 1,000 babies in a healthy baby nursery. The number climbs to an average of 30 per 1,000 babies in an intensive care nursery. Suppose that 1,000 babies from healthy baby nurseries were randomly surveyed. Find the probability that exactly two babies were born deaf. Use the following information to answer the next four exercises. Recently, a nurse commented that when a patient calls the medical advice line claiming to have the flu, the chance that he or she truly has the flu (and not just a nasty cold) is only about 4%. Of the next 25 patients calling in claiming to have the flu, we are interested in how many actually have the flu.
Introductory Business Statistics
Introductory Business Statistics by OpenStax, used under CC BY 4.0. Changes made by Stratacademy.
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