For a single draw from an ordinary deck of cards, The probability of getting a q

Question

For a single draw from an ordinary deck of cards, The probability of getting a queen given that a black card was select For a single draw from an ordinary deck of cards,the probability of getting a diamond given that a face card was selected is Two dice are rolled. The probability of rolling a sum of eight, given that a double was rolled is My county dub, 68% of the play bridge and drink champagne. A nd 83% of members play bridge. If a memeber is selected at random, find the probability the In an member drinks champagne, given that the member plays bridge. The answer is (Keep the anwer with two decimal places) 10. My Note that Bob and Chris go to the movies is 0.35. The probability that Chris goes to the movies is o .5. What is the probability that Bob goes to the movies givent that Chris goes? The answer is

Explanation / Answer

8.
a) Required probability = 2/26 = 1/13 = 0.07692
There are 26 black cards and 2 black queens are possible

b) Required probability = 3/12 = 1/4 = 0.25
There are 12 face cards overall and 3 of them are of dimonds

c) Required probability = 1/6 = 0.1667
There are 6 possible combinations of doubles and only (4,4) brings the sum of 8

9.
P(B and C) = 0.68
P(B) = 0.83
P(C|B) = P(B and C)/P(B) = 0.68/0.83 = 0.8193

10.
P(B and C) = 0.35
P(C) = 0.5
P(B|C) = 0.35/0.5 = 0.7

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