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Probability Basics

A special lottery is to be held to select a high school student of the year. There are 800 seniors, 500 juniors, and 100 sophomores who applied. Each senior's name is placed in the lottery 3 times; each junior's name, 4 times; and each sophomore's name, 4 times. What is the probability that a senior's name will be chosen?



A)  1/2
B)  4/8
C)  5/10
D)  8/3
E)  3/7

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