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umka2103 [35]
3 years ago
13

PLEASE HELP!

Mathematics
2 answers:
den301095 [7]3 years ago
6 0

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: P(A)=15\%

The probability that a student chooses art or drama is 20 percent: P(A\cup D)=20\%

The probability that a student chooses both art and drama is 2 percent:

P(A\cap D)=2\%

Recall that:

P(A\cup D)=P(A)+P(D)-P(A\cap D)

We plug in the various probabilities to get:

20\%=15\%+P(D)-2\%

20\%-15\%+2\%=P(D)

7\%=P(D)

\therefore P(D)=7\%

Hence the probability that a student chooses drama as an elective is 7 percent

True [87]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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