An unbiased coin comes up heads with probability 075 in any


An unbiased coin comes up heads with probability 0.75 in any toss. The coin is tossed 3 times.

(a) Draw a probability tree diagram for the experiment, and find the probability of getting

(b) at least one head and one tail

(c) exactly two heads

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Basic Statistics: An unbiased coin comes up heads with probability 075 in any
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