Chapter 5: Q T5.5. (page 336)
What is the probability that a student has a GPA under ?
Short Answer
The correct option is (b) 0.255.
Chapter 5: Q T5.5. (page 336)
What is the probability that a student has a GPA under ?
The correct option is (b) 0.255.
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Get started for freeLotto In the United Kingdomโs Lotto game, a player picks six numbers from 1 to 49 for each ticket. Rosemary bought one ticket for herself and one for each of her four adult children. She had the lottery computer randomly select the six numbers on each ticket. When the six winning numbers were drawn, Rosemary was surprised to find that none of these numbers appeared on any of the five Lotto tickets she had bought. Should she be? Design and carry
out a simulation to answer this question. Follow the four-step process.
Taking the train According to New Jersey Transit, the 8:00 a.m. weekday train from Princeton to New York City has a 90% chance of arriving on time. To test this claim, an auditor chooses 6 weekdays at random during a month to ride this train. The train arrives late on 2 of those days. Does the auditor have convincing evidence that the companyโs claim isnโt true? Design and carry out a simulation to answer this question. Follow the four-step process.
Cold weather coming to A TV weather man, predicting a colder-than-normal winter, said, โFirst, in looking at the past few winters, there has been a lack of
really cold weather. Even though we are not supposed to use the law of averages, we are due.โ Do you think that โdue by the law of averagesโ makes sense in talking about the weather? Why or why not?
You want to estimate the probability that the player makes or more of shots. You simulate 10 shots 25 times and get the following numbers of hits:
What is your estimate of the probability?
(a) , or (d) , or
(b) , or (e) , or
(c) , or
Genetics Suppose a married man and woman both carry a gene for cystic fibrosis but donโt have the disease themselves. According to the laws of genetics, the probability that their first child will develop cystic fibrosis is
(a) Explain what this probability means.
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