a.Two 7-sided fair dice are tossed simultaneously. What is the probability of getting two sevens? b.Two 7-sided fair dice are to
ssed simultaneously. What is the probability of getting three sevens?
1 answer:
A).
The first cube can land in any one of 7 ways. For each of those . . .
The second cube can land in any one of 7 ways.
Total number of possible results = (7 x 7) = 49 .
Number of successful results (both land on 7s) = 1
Probability = 1/49 = 2.04% .
B).
This is a trick question.
Two dice can only show 2 numbers at a time.
The probability of any combination of 3 numbers is zero.
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