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प्रश्न
If two coins are tossed, find the probability of the following event.
Getting no head ?
उत्तर
Sample Space (S) = {HH, HT, TT, TH}
∴ n(S) = 4
Event B: Getting no head
B = {TT}
∴ n(B) = 1
`therefore P(B) =(n(B))/(n(S))`
`= 1/4`
Hence, the probability of getting no head is `1/4.`
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