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प्रश्न
Three coins are tossed together. The probability of getting exactly one tail, is ______.
पर्याय
`1/8`
`1/4`
`7/8`
`3/8`
MCQ
रिकाम्या जागा भरा
उत्तर
Three coins are tossed together. The probability of getting exactly one tail, is `bbunderline(3/8)`.
Explanation:
There are three possible outcomes where exactly one tail occurs: HHT, HTH and THH each of these outcomes has the same probability, because the coin are fair, So each outcomes has probability of
`1/2 xx 1/2 xx 1/2 = 1/8`
The "P" of getting are tail = `3 xx 1/8 = 3/8`
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