Asked Dec 1, 2019

You are performing 4 independent Bernoulli trials with p = .4 and q = .6. Calculate the probability of the stated outcome. Check your answer using technology. (Round your answer to four decimal places.)

At most three successes
P(X ≤ 3) = 

Expert Answer

Step 1


If X ~ Bin (n, p), then the probability mass function of X is:

p (x) = (nCx) px qnx; for x = 0, 1, …, n; 0 < p <1; q = 1 – p; p (x) ...

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