Two coin are tossed simultaneously, find probability that both are tails.
1. 3/4
2. 1/4
3. 3/5
4. 4/7
Two coin are tossed simultaneously, find probability that both are tails.
1. 3/4
2. 1/4
3. 3/5
4. 4/7
1. 3/4
2. 1/4
3. 3/5
4. 4/7
Correct Answer – Option 2 : 1/4
Formula used:
P(E) = n(E)/n(S)
Calculation:
Let S be the sample space
Here S = HH, HT, TH, TT
⇒ n(S) = 4
Let E is event to getting bot are tails = TT
⇒ n(E) = 1
P(E) = n(E)/n(S)
⇒ 1/4
∴ Probability of both are tails is 1/4