In large university system, 82% of students have cell phones. A random sample of 150 students is chosen, and X is the number of students in the sample with cell phones. Supposing that the Binomial distribution applies, find out the mean, and standard deviation of X, and approximate the probability that at least 130 in the sample have cell phones.
µ = ___________ ; s = ______________ ; P(X = 130) = ________________ .