A simple random sample of adults living in a suburb of a large city was selected. Each selected adult was asked their age and how many cups of coffee they typically drink in a day. The resulting data are summarized in the table below: Cups of Coffee Per Day Age Category O cups 1 cup 2+ cups TОTAL 21-31 8 15 27 50 31-45 22 32 35 89 46-60 12 14 27 53 7 15 Over 60 47 64 96 207 ТОTAL

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(For this question, type out your work. Label parts (a), (b), and (c) in your answer.
SHOW WORK FOR PARTIAL CREDIT)
A simple random sample of adults living in a suburb of a large city was
selected. Each selected adult was asked their age and how many cups of
coffee they typically drink in a day. The resulting data are summarized in the
table below:
Cups of Coffee Per Day
Age Category
O cups
1 cup
2+ cups
TOTAL
21-31
8.
15
27
50
31-45
22
32
35
89
46-60
12
14
27
53
3
7
15
Over 60
47
64
96
207
TOTAL
(a) What is the probability that a person chosen at random from those in this
sample will be in the 31-45 age category?
Transcribed Image Text:(For this question, type out your work. Label parts (a), (b), and (c) in your answer. SHOW WORK FOR PARTIAL CREDIT) A simple random sample of adults living in a suburb of a large city was selected. Each selected adult was asked their age and how many cups of coffee they typically drink in a day. The resulting data are summarized in the table below: Cups of Coffee Per Day Age Category O cups 1 cup 2+ cups TOTAL 21-31 8. 15 27 50 31-45 22 32 35 89 46-60 12 14 27 53 3 7 15 Over 60 47 64 96 207 TOTAL (a) What is the probability that a person chosen at random from those in this sample will be in the 31-45 age category?
31-45
22
32
35
89
46-60
12
14
27
53
Over 60
3
7.
15
ТОTAL
47
64
96
207
(a) What is the probability that a person chosen at random from those in this
sample will be in the 31-45 age category?
(b) What is the probability that a person chosen at random from those in this
sample who drinks 2+ cups of coffee per day will be in the 31-45 age
category?
(c) Based on your answers to parts (a) and (b), is cups of coffee per day
independent of age category for those in this sample? EXPLAIN.
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Transcribed Image Text:31-45 22 32 35 89 46-60 12 14 27 53 Over 60 3 7. 15 ТОTAL 47 64 96 207 (a) What is the probability that a person chosen at random from those in this sample will be in the 31-45 age category? (b) What is the probability that a person chosen at random from those in this sample who drinks 2+ cups of coffee per day will be in the 31-45 age category? (c) Based on your answers to parts (a) and (b), is cups of coffee per day independent of age category for those in this sample? EXPLAIN. HTML Editor
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