Question

Probability of getting a head in a fair coin toss:

• A. 0
• B. 1
• C. 1/2
• D. 2

Hint:

The sum of probabilities of all elementary events in an experiment is always 1. Here, $P(H) + P(T) = 0.5 + 0.5 = 1$.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Probability is defined as the number of favorable outcomes divided by the total number of possible outcomes in the sample space.
Step 2: Detailed Explanation:
For a fair coin, the sample space $S = \{H, T\}$. Total number of outcomes $n(S) = 2$. Event $E$ of getting a head $= \{H\}$. Number of favorable outcomes $n(E) = 1$. $P(E) = \frac{n(E)}{n(S)} = \frac{1}{2}$.
Step 3: Final Answer:
The probability is 1/2.