Probability of picking a winning horse in a race


Solve the following:

Q: If the probability of picking a winning horse in a race is 0.2, and if X is the number of winning picks out of 20 races, what is:

a) P [X=4]

b) P[X<=4]

c) E(X) and Var(X)

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Basic Statistics: Probability of picking a winning horse in a race
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