Please show your work step by step 1)Assume that when adults with smartphones are randomly selected, 65% use them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that exactly 2 of them use their smartphones in meetings or classes. The probability is (round to four decimal places) 2) Assume that when adults with smartphones are randomly selected, 59% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 7 of them uses their smartphones in meetings or classes. The probability is. (round to four decimal places) 3) Assume that when adults with smartphones are randomly selected, 48% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that fewer than 4 of them use their smartphones in meetings or classes. The probability is (round to four decimal places)
Please show your work step by step 1)Assume that when adults with smartphones are randomly selected, 65% use them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that exactly 2 of them use their smartphones in meetings or classes. The probability is (round to four decimal places) 2) Assume that when adults with smartphones are randomly selected, 59% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 7 of them uses their smartphones in meetings or classes. The probability is. (round to four decimal places) 3) Assume that when adults with smartphones are randomly selected, 48% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that fewer than 4 of them use their smartphones in meetings or classes. The probability is (round to four decimal places)
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 5SE: The union of two sets is defined as a set of elements that are present in at least one of the sets....
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Transcribed Image Text:Please show your work step by step 1)Assume that when adults with smartphones are randomly selected, 65% use
them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that exactly 2 of
them use their smartphones in meetings or classes. The probability is
_(round to four decimal
places) 2) Assume that when adults with smartphones are randomly selected, 59% use them in meetings or classes. If 10
adult smartphone users are randomly selected, find the probability that at least 7 of them uses their smartphones in
meetings or classes. The probability is.
(round to four decimal places) 3) Assume that when adults
with smartphones are randomly selected, 48% use them in meetings or classes. If 10 adult smartphone users are
randomly selected, find the probability that fewer than 4 of them use their smartphones in meetings or classes. The
probability is
_(round to four decimal places)
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