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prin30004
03.01.2020 •
Mathematics
You're dealt three cards in a row at random from a standard deck of 52 cards.now suppose that you are dealt a pair or three of a kind in the three cards. what are the odds that you had a pair on your first two cards; that is, that your first two cards were of the same denomination? a) 22,776/132,600b) 1/13c) 7,800/22,776d) 3/51
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Ответ:
D
Step-by-step explanation:
Given
There are 52 cards out which we have to choose 3 cards
and starting 2 will have same denomination
For first card we can withdraw any card of any denomination and for second card we have to choose card of same denomination
There are total of 4 cards of same denomination and after 1 st card is drawn we need to choose 1 card out of 3 card
Probability![=\frac{^3C_1}{^{51}C_1}](/tpl/images/0441/6411/56ff7.png)
Ответ: