Question

When two coins are tossed, what is the probability of at most two heads?

• A. 1
• B. -1
• C. 0
• D. None of this

Hint:

In probability, the probability of an event is the ratio of favorable outcomes to total possible outcomes.

Answer 1

The Correct Option is A

Step 1: Total outcomes
When two coins are tossed, the possible outcomes are: HH, HT, TH, TT. So, there are 4 outcomes in total.

Step 2: Favorable outcomes
The question asks for the probability of at most two heads. All possible outcomes satisfy this:
- 0 heads: TT
- 1 head: HT, TH
- 2 heads: HH

Step 3: Calculating probability
Probability = Number of favorable outcomes ÷ Total outcomes = 4 ÷ 4 = 1

Step 4: Conclusion
The probability of at most two heads is 1.

Final Answer: 1