a trainer is teaching a dolphin to do tricks, the probability that the dolphin successfully performs...
a trainer is teaching a dolphin to do tricks, the probability that the dolphin successfully performs tricks is 45%. out of 3 attempts, you want to find the probability that the dolphin fails exactly one time.
Homework Answers
solution
Given that ,
p = 0.45
1 - p = 1 - 0.45 = 0.55
n =3
Using binomial probability formula ,
P(X = x) = (n C x) * px * (1 - p)n - x
P(X =1 ) = (3 C 1) * 0.451 * (0.55)2
probability =0.4084
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