For X ~ B(n, p), what is P(X = x)?
AnCx p^x q^x
BnPx p^x q^(n-x)
CnCx p^x q^(n-x)
DnCx p^(n-x) q^x
Answer & Solution
Correct answer: C. nCx p^x q^(n-x)
Choose which x trials succeed in nCx ways, each with probability p^x q^(n-x).
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