The table below summarizes results from a study of people who refused to answer
ID: 3180783 • Letter: T
Question
The table below summarizes results from a study of people who refused to answer survey questions. A market researcher is interested in responses, especially from those between the ages of 22 and 39. Find the probability that a selected subject responds or is between the ages of 22 and 39.
Age
18-21
22-29
30-39
40-49
50-59
60 and over
Responded
7171
253253
243243
134134
136136
200200
Refused
1515
2424
3737
3030
3939
6161
The probability that the subject responded or is between the ages of 22 and 39 is
nothing .
(Round to three decimal places as needed.)
Age
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22-29
30-39
40-49
50-59
60 and over
Responded
7171
253253
243243
134134
136136
200200
Refused
1515
2424
3737
3030
3939
6161
Test: Exam 2 tatLab This Question: 2 pls 2sf t? This Teet29sts posesExplanation / Answer
Here P(responded)=total responded/Grand total=1037/1243=0.8343
P(ages 22 -39 who refused)=(24+37)/1243=61/1243
P(responded or 22-39 ages)=(1037+61)/1243=0.8833
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