Mathematics, 19.09.2019 20:40, Jinesha
Abag contains 9 red chips and 12 blue chips. two chips are selected randomly without replacement from the bag. what is the probability that the two chips are the same color?
that would be the probability of two reds plus the probability of two blues.
the probability of two reds is (9/21)*(8/20) = 72/420 the probability of two blues is (12/21)*(11/20) = 132/420. the sum is 204/420 = 51/105 = 45.87% a magician asks you to pick a card, any card from a standard deck of 52 cards. what is the probability of picking an ace?
a magician asks you to pick a card, any card from a standard deck of 52 cards. what is the probability of picking an ace?
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Abag contains 9 red chips and 12 blue chips. two chips are selected randomly without replacement fro...
Mathematics, 10.02.2020 23:06
Mathematics, 10.02.2020 23:06