princessksh8
12.10.2019 •
Mathematics
What is the sum of the infinite geometric series?
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Ответ:
Ответ:
answer: 7 percent.
step-by-step explanation:
since here, probability of choosing arts, p(a)= 15%
probability of choosing arts and drama)
= 2%
probability of choosing arts or drama)
= 20%
probability of choosing dramas, p(d)=?
since, we know that,=p(a) + p(d)-p(a\cap d))
⇒20 = 15+ p(d) - 2
⇒ p(d) = 20-15+2= 7
⇒ p(d) = 7%
therefore, 7 % is the probability that a student chooses drama as an elective.