PLEASE SOLVE 19th and 20th question
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19. Probability = 1/4
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19. Two coins outcomes(when thrown)-
Head,head
Tail,tail
Head,tail
Tail,head
:. Probability of getting two heads= no.of favourable outcomes/ total no.of outcomes
Here,
Favourable outcome = 1
Total no.of outcome = 4
:. Probability = 1/4
20.
1. Euler’s formula = f+v-e=2
:. 6+v-12=2
Or, v=2+12-6
Or,v=8
Head,head
Tail,tail
Head,tail
Tail,head
:. Probability of getting two heads= no.of favourable outcomes/ total no.of outcomes
Here,
Favourable outcome = 1
Total no.of outcome = 4
:. Probability = 1/4
20.
1. Euler’s formula = f+v-e=2
:. 6+v-12=2
Or, v=2+12-6
Or,v=8
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