3. Two coins tossed smul taneously and we get a heads 125 times one head 300 times and no heads 75 times find , the probability of occurence of two tails and no tails.
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Step-by-step explanation:
Probability that two head occurs=105/500=21/100
Probability that exactly one head appears =275/500.
Probability that no head appears=120/500=6/25
Probability that at least one head appears=380/500=19/25
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