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प्रश्न
A coin is tossed twice . what is the probability of getting
(i) no head
उत्तर
When a coin is tossed twice , the outcomes are {HH , HT , TH , TT}
Number of outcomes = 4
Number of favourable outcomes = 1
P(getting no head) = `"Number of favourable outcomes"/"Total number of outcomes"`= `1/4`
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