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1. A pair of dice is rolled, find the probability that a sum larger than 4 is rolled.
2. Two cards are drawn from a deck of cards, find the probability that a 6 is drawn first and a jack is drawn second. (Drawing is done with replacement)
1 Answer
- MarkLv 61 decade agoFavorite Answer
1. A pair of dice is rolled, find the probability that a sum larger than 4 is rolled.
There are 36 equally likely outcomes.
A sum larger than 4 will occur except in these 6 cases:
{1, 1}, {1, 2}, {1, 3}, {2, 1}, {2, 2}, {3, 1}
p(sum > 4) = 30/36
= 5/6
2. Two cards are drawn from a deck of cards, find the probability that a 6 is drawn first and a jack is drawn second. (Drawing is done with replacement)
P(6, then J) = 4/52 * 4/52
= 1/169
