In a simultaneous toss of two coins, the probability of at least one h

1.	In a simultaneous toss of two coins, the probability of at least one head isA) 1/4B) 3/4C) 2/4D) 1/3
Answer» Correct option is: B)\(\frac 34\) When two coins are tossed simultaneously, then total possible outcomes are {HH, HT, TH, TT} \(\therefore\) Total No of possible outcomes is n (S) = 4. Fabourable outcomes to event of getting at least one head are {HH, HT, TH}. \(\therefore\) Total No of favourable outcomes = 3 \(\therefore\) Probability of getting at least one head = \(\frac {Total \,No\, of \,favourable \,outcomes}{Total \,Possible \, outcomes}\) = \(\frac 34\) Correct option is: B) \(\frac{3}{4}\)

In a simultaneous toss of two coins, the probability of at least one head isA) 1/4B) 3/4C) 2/4D) 1/3

Answer»

Correct option is: B)\(\frac 34\)

When two coins are tossed simultaneously, then total possible outcomes are

{HH, HT, TH, TT}

\(\therefore\) Total No of possible outcomes is n (S) = 4.

Fabourable outcomes to event of getting at least one head are {HH, HT, TH}.

\(\therefore\) Total No of favourable outcomes = 3

\(\therefore\) Probability of getting at least one head

= \(\frac {Total \,No\, of \,favourable \,outcomes}{Total \,Possible \, outcomes}\) = \(\frac 34\)

Correct option is: B) \(\frac{3}{4}\)

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