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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.

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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APPEARS IN

 Selina Solution for Concise Mathematics for Class 10 ICSE (2020 (Latest))
Chapter 25: Probability
Exercise 25(B) | Q: 7.2 | Page no. 393
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If Two Coins Are Tossed Once, What is the Probability of Getting: at Least One Head. Concept: Type of Event - Complementry.
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