Consider a binomial random variable X with n = 7 and p = 0.3. a. Find P(X < 3). b. Find the mean and the variance of X.
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We can use the binomial probability formula: P(X = k) = C(n, k) * p^k * (1-p)^(n-k) where C(n, k) is the number of combinations of n items taken k at a time, p is the probability of success, and n is the number of trials. For our problem, n = 7, k = 3, and p = Show more…
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