A coin is tossed twice. The mean number of Heads obtained is:
A coin is tossed twice. The mean number of Heads obtained is:
- A. 0.5
- B. 1
- C. 1.5
- D. 2
Answer: B) 1
Explanation: This is a binomial distribution with n=2, p=1/2. Mean = np = 2 × (1/2) = 1.
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