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Probability Basics

A special lottery is to be held to select a high school student of the year. There are 600 seniors, 400 juniors, and 500 sophomores who applied. Each senior's name is placed in the lottery 2 times; each junior's name, 3 times; and each sophomore's name, 4 times. What is the probability that a senior's name will be chosen?



A)  5/10
B)  1/3.6666666666667
C)  4/13
D)  3/11
E)  6/12

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