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Three coins are tossed together. Write all the possible outcomes. Now, find the probability of getting at least two heads. - Mathematics

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प्रश्न

Three coins are tossed together. Write all the possible outcomes. Now, find the probability of getting at least two heads.

योग

उत्तर

When three coins are tossed, possible outcomes are: 

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT  

Total possible outcomes = 8  

Favorable outcomes for at least two heads = HHT, THH, HTH, HHH 

Number of favorable outcomes = 4

P(at least two heads) = `4/8 = 1/2`

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अध्याय 25: Probability - Exercise 25 (C) [पृष्ठ ३९५]

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सेलिना Mathematics [English] Class 10 ICSE
अध्याय 25 Probability
Exercise 25 (C) | Q 27.2 | पृष्ठ ३९५

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