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Answer:
7 percent
Step-by-step explanation:
We have the following information from the question:
The probability that a student chooses art as an elective is 15 percent:
The probability that a student chooses art or drama is 20 percent:
The probability that a student chooses both art and drama is 2 percent:
Recall that:
We plug in the various probabilities to get:
Hence the probability that a student chooses drama as an elective is 7 percent