Engineering Board Exam Reviewer · Binomial Distribution · medium
A fair die is rolled 4 times. What is the probability of getting exactly two 6's?
- 1/36
- 25/216
- 5/36
- 5/18
Answer
B. 25/216
Solution
P= 42≤ft( 16 )2≤ft( 56 )2=6·25/1296=25/216.
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