Probability of tossing heads on different coins

Reference no: EM1399657

Suppose three unfair coins are tossed, a nickel, a dime, and a quarter. The probability of tossing a head on the nickel is 0.35; the probability of tossing a head on the dime is 0.20; and the probability of tossing a head on the quarter is 0.65. Let the random variable X be the number of heads observed on each toss of the three coins. So the range of X is the set and there are elements of the sample space.

(a) Find the probability function of X.

(b) Find the expected value of X:

Reference no: EM1399657

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