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 9 of 13.
Brian said:
1 decade ago
What is the probability of this question?
Jaya said:
6 years ago
Thank you for your explanation @Sundhar.
Venkatesh said:
10 years ago
Why to consider the THT, TTH, HTT, TTT?
Rajesh said:
1 decade ago
At most means 7/8.
At leat means 3/8.
At leat means 3/8.
Uday said:
1 decade ago
How we can do with this ^ symbol ?
Rushikesh said:
9 years ago
How should we accept as zero heads?
Durgaprasad said:
1 decade ago
Thanks sundar. Superb explanation.
Ghanshyam said:
1 decade ago
How P(E) = n(E) upon n(S)= 7 by 8.
Dhivya said:
4 years ago
Thank you for explaining @Sundar.
Pratyush said:
10 years ago
At-most 2 means its 0, 1, or 2.
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