SOLUTION: . STAYING IN TOUCH- In a poll conducted in 2007, 200 adults ages 18 yr and older were asked how frequently they are in touch with their parents by phone. The results of the poll we
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-> SOLUTION: . STAYING IN TOUCH- In a poll conducted in 2007, 200 adults ages 18 yr and older were asked how frequently they are in touch with their parents by phone. The results of the poll we
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Question 509660: . STAYING IN TOUCH- In a poll conducted in 2007, 200 adults ages 18 yr and older were asked how frequently they are in touch with their parents by phone. The results of the poll were as follows:
Answer Monthly Weekly Daily Don’t know Less
Respondents, % 11 47 32 2 8
If a person who participated in the poll is selected at random, what is the probability that the person said he or she kept in touch with his or her parents
a. Once a week?
b. At least once a week?
