CUET · MATHS · PYQ PAPER 2023
The mean number of heads in three tosses of a fair coin is:
- A \(\frac{1}{2}\)
- B 1
- C \(\frac{3}{2}\)
- D \(\frac{1}{4}\)
Answer & Solution
Correct Answer
(C) \(\frac{3}{2}\)
Step-by-step Solution
Detailed explanation
\( E(X) = np \) \( E(X) = 3 \times 0.5 \) \( E(X) = 1.5 \) or \( \frac{3}{2} \)
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