In the random experiment of tossing a coin thrice the possible outcomes are
(HTT)(THT)(TTH)(HHT)(HTH)(THH)(HTT)(THT)(TTT)
Exactly one head appeared: (HTT)(THT)(TTH)
Exactly two heads appeared: (HHT)(HTH)(THH)
At most one head appeared: (HTT)(THT) (TTH) (TTT)
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Step-by-step explanation:
probability of Exactly one head appeared= 3/2³ = 3/8
probability of Exactly two heads appeared = 3/8
probability of Atmost one head appeared = 4/8 = 1/2
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