f two dice are rolled once and one die rolled

Lauren Mullins

Lauren Mullins

Answered question


f two dice are rolled once and one die rolled a second time if the first two rolls have same number, what is the probability of getting a sum of 14?

Answer & Explanation

Evie French

Evie French

Beginner2022-02-15Added 18 answers

Work backwards, then determine the probabilities
If the sum is 14, then possible values for the second roll (given that the first two are equal) and the value of the first rolls:
(First double, Second single)
P(two 6's then a 2) =(16)3=1216
Same probability for the other two outcomes.
Total probability =3216=172

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