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If Two Coins Are Tossed Once, What is the Probability of Getting: Both Heads Or Both Tails - Mathematics

If two coins are tossed once, what is the probability of getting: 

both heads or both tails

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Solution

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

n(s)=4 

E=event of getting both heads or both tails = {HH,TT} 

n(E)=2 

Probability of getting both heads or both tails= `(n(E))/(n(s))=2/4=1/2`

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APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 25 Probability
Exercise 25 (B) | Q 7.3 | Page 393
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