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If two coins are tossed once, what is the probability of getting at least one head. - Mathematics

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Question

If two coins are tossed once, what is the probability of getting at least one head.

Sum

Solution

When two coins are tossed together possible number of outcomes = {HH, TH, HT, TT} 

n(S) = 4

E = event of getting at least one head = {HH, TH, HT} 

n(E) = 3

Probability of getting at least one head = `(n(E))/(n(S)) = 3/4 ` 

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Chapter 25: Probability - Exercise 25 (B) [Page 393]

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Selina Mathematics [English] Class 10 ICSE
Chapter 25 Probability
Exercise 25 (B) | Q 7.2 | Page 393

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