Aptitude - Probability - Discussion
Discussion Forum : Probability - General Questions (Q.No. 5)
5.
Three unbiased coins are tossed. What is the probability of getting at most two heads?
Answer: Option
Explanation:
Here S = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}
Let E = event of getting at most two heads.
Then E = {TTT, TTH, THT, HTT, THH, HTH, HHT}.
 P(E) = |
n(E) | = | 7 | . |
| n(S) | 8 |
Discussion:
121 comments Page 7 of 13.
Jyotsna said:
9 years ago
Thank you @Sundar.
Your explanation is clear and simple.
Your explanation is clear and simple.
Shubham said:
9 years ago
Here they've taken 3 coins for example. Why not 2 coins?
Ravi said:
1 decade ago
You ask most two head but why you considered zero head?
Shaikh Sayma said:
9 years ago
What is the Probability of getting at the most 2 tails?
Prashansa said:
6 years ago
I am not understanding this. Please, someone, help me.
Madhu said:
6 years ago
What is unbiased coins?
Can anyone please answer me.
Can anyone please answer me.
Dharini said:
1 decade ago
I cant follow what abhijit said why it is 2 power 3?
Kruvy said:
1 decade ago
@Sundar , I like the way you explained. thanks mate.
Sam said:
7 years ago
The condition is atmost 2 heads how TTT is possible?
A.kalai said:
9 years ago
Can you clear my doubt regarding mean and variance?
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