Fortune Telling Collection - Free divination - What is the probability that a deck of playing cards can draw pairs? If you draw three times, what is the probability of drawing a pair?
What is the probability that a deck of playing cards can draw pairs? If you draw three times, what is the probability of drawing a pair?
(1) First determine the logarithm: 13, and set the number of points as 10.
(2) Choose the first card, and the probability of choosing 10 is 4 ÷ 52 =113.
(3) Choose the second card, and the probability of choosing 10 is 3 ÷ 51=117.
(4) The probability of forming a pair is:13× (113 )× (117) =117.
etc
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