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Chapter 5: Q. 26 (page 312)
A total of repetitions of the simulation were performed. The number of makes in each set of simulated shots was recorded on the dotplot. What is the approximate probability that a shooter makes or more shots in attempts?
a.
b.
c.
d.
e.
The correct answer is option c
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Who鈥檚 paying? Abigail, Bobby, Carlos, DeAnna, and Emily go to the bagel shop for lunch every Thursday. Each time, they randomly pick of the group to pay for lunch by drawing names from a hat.
a. Give a probability model for this chance process.
b. Find the probability that Carlos or DeAnna (or both) ends up paying for lunch.
A spinner has three equally sized regions: blue, red, and green. Jonny spins the spinner times and gets blues in a row. If he spins the spinner more times, how many more blues is he most likely to get?
Is this your card? A standard deck of playing cards (with jokers removed) consists of 52 cards in four suits鈥攃lubs, diamonds, hearts, and spades. Each suit has 13 cards, with denominations ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, and king. The jacks, queens, and kings are referred to as 鈥渇ace cards.鈥� Imagine that we shuffle the deck thoroughly and deal one card. The two-way table summarizes the sample space for this chance process based on whether or not the card is a face card and whether or not the card is a heart.
| Type of card | |||
| Face card | Non-Face card | Total | |
| Heart | |||
| Non-Heart | |||
| Total | |||
Are the events 鈥渉eart鈥� and 鈥渇ace card鈥� independent? Justify your answer.
Another commercial If Aaron tunes into his favorite radio station at a
randomly selected time, there is a probability that a commercial will be playing.
a. Interpret this probability as a long-run relative frequency.
b. If Aaron tunes into this station at randomly selected times, will there be exactly one
time when a commercial is playing? Explain your answer.
2Drive to exercise : The two-way table summarizes the responses of 120 people to a survey in which they were asked, 鈥淒o you exercise for at least 30 minutes four or more times per week?鈥� and 鈥淲hat kind of vehicle do you drive?鈥�
| Exercise | Sedan | SUV | Truck |
| Yes | |||
| No |
Suppose one person from this sample is randomly selected.
a. Find the probability that the person drives an SUV.
b. Find the probability that the person drives a sedan or exercises for at least 30 minutes four or more times per week.
c. Find the probability that the person does not drive a truck, given that she or he exercises for at least 30 minutes four or more times per week.
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