Rose and Marry each have a bag of marbles, each of which contains 4 blue marbles, 10 red marbles, and 6 white marbles. If Rose and Marry each select one marble from their respective bags, what is the probability that either Rose or Marry select a red marble? Choose the correct answer:  A) 3/7  B) 3/4  C) 1/4  D) 1/8  E) 1/16
Probability that either selects a red marble,P(Either) = 1- probability that neither selects a red marble, P(Neither)   Probability that Marry selects non red = 10c1 / 20c1 = 1/2   Probability that Rose selects non red = 10c1 / 20c1 = 1/2   =&gt; P(Either)=1- (1/2*1/2) = 1-1/4= 3/4.   Answer 3/4.
<result>B</result>
Rose and Marry each have a bag of marbles, each of which contains 4 blue marbles, 10 red marbles, and 6 white marbles. If Rose and Marry each select one marble from their respective bags, what is the probability that either Rose or Marry select a red marble?