Question

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 on of the people polled uses text messaging, what is the probability that the person is also using an e-mail? Express your answer as a decimal. Round to nearest hundredth if necessary.



A. 0.65
B.0.61
C.0.8
D. 0.13

Answer 1

Table?

Answer 2

Do you have the table? :)