Mathematics, 29.01.2021 04:40 skyless
The mathematics department at a high school has twenty instructors. Six are easy graders. Twelve are considered good teachers. Seven are neither easy graders nor good teachers. If a student is assigned randomly to one of the easy graders, what is the probability that the instructor is also good?
A. 7/12
B. 5/12
C. 7/10
D. 7/20
E. 5/6
Answers: 3
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The mathematics department at a high school has twenty instructors. Six are easy graders. Twelve are...
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