Transcribed Image Text: A poll of 100 senior citizens in a retirement community asked about the types of electronic communication they

Excerpt
Express your answer as a decimal. If necessary, round your answer to the nearest hundredth. Uses text mess aging Yes No Total Yes 0.17 0.66 0.83 Uses e- mail No 0.11 0.06 0.17 Total 0.28 0.72 1 a. 0.65 b. 0.61 с. 0.8 d. 0.13

Transcribed Image Text: A poll of 100 senior citizens in a retirement community asked about the types of electronic communication they
used. The table shows the joint and marginal frequencies from the poll results.
If you are given that one of the people polled uses text messaging, what is the probability that the person is also
using e-mail? Express your answer as a decimal. If necessary, round your answer to the nearest hundredth.
Uses text mess aging
Yes
No
Total
Yes
0.17 0.66
0.83
Uses e- mail
No
0.11
0.06
0.17
Total
0.28
0.72
1
a.
0.65
b. 0.61
с.
0.8
d.
0.13

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