Given black die shows 5, the red die can be 1 to 6.
For sum greater than 9, red must be 5 or 6 (giving sums 10, 11).
Probability =62=31.
The black and red die are rolled. The conditional probability of obtaining a sum greater than 9 given that the black die resulted in a 5 is :
Held on 22 May 2023 · Verified 13 Jul 2026.
31
61
181
91
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