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Asked Dec 1, 2019

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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) =

Step 1

**Introduction:**

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

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

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