Two dice are thrown. Let X denote the sum of the numbers appearing. The probability P(X=7) is:
Two dice are thrown. Let X denote the sum of the numbers appearing. The probability P(X=7) is:
- A. 1/6
- B. 5/36
- C. 1/12
- D. 7/36
Answer: A) 1/6
Explanation: The sum 7 can be formed by (1,6), (2,5), (3,4), (4,3), (5,2), (6,1). That is 6 outcomes out of 36. 6/36 = 1/6.
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