ProbabilityHard
Question
A pair of fair dice is thrown independently three times. The probability of getting a score of exactly 9 twice is
Options
A.1/729
B.8/9
C.8/729
D.8/243
Solution
Probability of getting score 9 in a single throw 
Probability of getting score 9 exactly twice = 3C2 ×
Probability of getting score 9 exactly twice = 3C2 ×
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