Ch:-Probability
In a single throw of two coins, find the probability of getting each of the following.
(1) Tails on both (i) Tails at least on one (iii) Tails on one (iv) No tails
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Answers
Answered by
1
Step-by-step explanation:
I) p(tails on both)=favourable outcomes /total outcome
=1/4
ii) p(tails at least on one) =favouarble outcomes/total outcomes
=2/4
iii) p(no tails )=write formula
=1/4
Answered by
19
Total possible outcomes in a single throw of two coins = 4
The outcomes are :—
☺{H , H }
☺{H , T }
☺{ T , H }
☺{ T , T }
Tails on both, i.e.: { T, T }
No. of desired outcome = 1
Thus, P( tails on both )
Tails at least on one, i.e.: { H, T } and { T, H } and { T, T }
No. of desired outcomes = 3
Thus, P ( tails at least on one )
Tails on only one, i.e.: { H, T } and { T, H }
No. of desired outcomes = 2
Thus, P ( tails on only one )
No tails, i.e.: { H, H }
No. of desired outcome = 1
Thus, P ( no tails )
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