Question 1127241: In a survey at a local college, 18% of students reported that they do not own a mobile device with internet capabilities. If 20 students are selected at random, find the probability that exactly 5 students don't own a mobile device with internet capabilities.
Answer by stanbon(75887)   (Show Source):
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Probability-and-statistics/1127241 (2018-10-25 20:28:11): In a survey at a local college, 18% of students reported that they do not own a mobile device with internet capabilities. If 20 students are selected at random, find the probability that exactly 5 students don't own a mobile device with internet capabilities.
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Binomial Problem with p = 0.18, n = 20 and x = 5
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P(x = 5) = 20C5*0.18^5*0.82^15 = binompdf(20,0.18,5) = 0.1493
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Cheers,
Stan H.
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