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Statistics
Eric Smith
Quiz 5 – 3/1/2024
Name:_____________________
The following table shows the results of player challenges from a recent tennis
tournament. Use this table to answer #1-3.
Challenge was successful Challenge was unsuccessful
Amateur player
12
22
Professional player
18
28
1. What is the probability that a randomly selected challenge was made by a professional
player or was successful?
(4)
2. If two challenges are randomly selected without replacement, find the probability that
both were by an amateur player.
(3)
3. If two challenges are randomly selected with replacement, find the probability that
both were by an amateur player.
(3)
Page 1 of 2
Statistics
Eric Smith
Quiz 5 – 3/1/2024
Name:_____________________
4. A batch of 60 tires contains 13 defective tires. A customer buys 4 different randomly
selected tires from this batch to put on a car. What is the probability that at least one of
the 4 tires is defective?
(5)
5. A school district has 1140 students, and 74 of those students have gray eyes. A
random sample of 30 students is selected without replacement. What is the probability
that none of the selected students has gray eyes?
(5)
Page 2 of 2
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