SOLUTION: A bag contains 2 red, 1 black and 1 white ball. Peter selects one ball from the bag. He then selects a second ball but does not replace the first ball before the second ball is cho
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Question 1119268: A bag contains 2 red, 1 black and 1 white ball. Peter selects one ball from the bag. He then selects a second ball but does not replace the first ball before the second ball is chosen.
a) draw a diagram showing all possibilities
b) find the probability that i) both balls selected are red ii) at least one selected ball is red
c) What is the probability that Peter had two red balls if it is known that at least one ball was red? Answer by solver91311(24713) (Show Source):
The probability of anything is the number of successful outcomes divided by the number of possible outcomes. You can do your own counting and arithmetic.
John
My calculator said it, I believe it, that settles it
