The table below summarizes results from a study of people who REFUSED to answer
ID: 3386980 • Letter: T
Question
The table below summarizes results from a study of people who REFUSED to answer survey questions. A pharmaceutical company is interested in opinions of the elderly.
What is the probablility that the selected subject is someone 60 and over WHO RESPONDED?
Responded Refused
18-21 73 11
22-29 255 20
30-39 245 33
40-49 136 26
50-59 138 35
60 and over 202 57
The probability that the selected subject is someone 60 and over who responded is ----------
Round to 3 decimals
Thank you in advance for showing me how to solve in detail so I can understand the concept.
Explanation / Answer
The table below summarizes results from a study of people who REFUSED to answer survey questions. A pharmaceutical company is interested in opinions of the elderly.
What is the probability that the selected subject is someone 60 and over WHO RESPONDED?
Responded
Refused
Total
18-21
73
11
84
22-29
255
20
275
30-39
245
33
278
40-49
136
26
162
50-59
138
35
173
60 and over
202
57
259
Total
1049
182
1231
someone 60 and over WHO RESPONDED =202
total=1231
probability that the selected subject is someone 60 and over WHO RESPONDED
=202/1231
= 0.164
The probability that the selected subject is someone 60 and over who responded is 0.164
Responded
Refused
Total
18-21
73
11
84
22-29
255
20
275
30-39
245
33
278
40-49
136
26
162
50-59
138
35
173
60 and over
202
57
259
Total
1049
182
1231
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.