assume that when adults with smartphones are randomly selected 36% use them in meetings or classes. If 6 .adult smartphone users are randomly selected , find the probability that at least 4 of them use their smartphones on meetings or classes
Solution
Given that ,
Using binomial probability formula ,
P(X = x) = (n C x) * px * (1 - p)n - x
P(X 4) = P(x = 4) + P(x = 5) + P(x = 6)
= 0.1286
Probability = 0.1286
assume that when adults with smartphones are randomly selected 36% use them in meetings or classes....
Assume that when adults with smartphones are randomly selected, 43% use them in meetings or classes. If 6 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or classes.
Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes . if 6 adult smartphone users are randomly selected , find the probability that at least 2 of them use their smartphones in meetings or classes.
Assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that at least 4 of them use their smartphones in meetings or classes.
Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that at least 6 of them use their smartphones in meetings or classes. The probability is (Round to four decimal places as needed.)
Assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes. If 8 adult smartphone users are randomly selected, find the probability that at least 5 of them use their smartphones in meetings or classes. The probability is _______
Assume that when adults with smartphones are randomly selected, 48% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes.
Assume that when adults with smartphones are randomly selected, 46% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes.
Assume that when adults with smartphones are randomly selected, 56% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 4 of them use their smartphones in meetings or classes. The probability is _______ (Round to four decimal places as needed.)
Assume that when adults with smartphones are randomly selected, 43% use them in meetings or classes. If 8 adult smartphone users are readomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes.
Assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or classes. The probability is _______ Round to four decimal places as needed.)