Mathematics
Mathematics, 20.02.2020 18:52, JessicaSontay8841

A survey of U. S. adults who own smartphones found that 35% of the respondents check their phones at least once an hour for each hour during the waking hours. Such smartphone owners are classified as "constant checkers." Suppose you were to draw a random sample of 10 smartphone owners.(a) The number in your sample who are constant checkers has a binomial distribution. What are n and p?(b) Use the binomial formula to find the probability that exactly two of the 10 are constant checkers in your sample. (Round your answer to four decimal places.)(c) Use the binomial formula to find the probability that two or fewer are constant checkers in your sample. (Round your answer to four decimal places.)

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