QUESTION 15 I PN) -0.4, P(N or V)-0 9, and P(N and V)-02, find P(V) 0.7 0.3 O-0.

Question

QUESTION 15 I PN) -0.4, P(N or V)-0 9, and P(N and V)-02, find P(V) 0.7 0.3 O-0.7 05 QUESTION 16 In a MATH class, there are 12 freshmen and 8 sophomores, 7 of the sophomores are females and 7 of the freshmen are males The probability of "the student selected is a sophomore A 12/20 B. 13/20 C. 720 The probability of "the student selected is a female The probability of "the student selected is a sophomore and female The probability of "the student selected is a sophomore or female UESTION 17 In a Math class, there are 12 freshmen and 8 sophomore 7 of sophomores are females and 7 of freshmen are males Find the probabilty that the students selected is a freshmen given that the students is a male O 12/20 C) 718 O 5/20 1/20 03 PM Ask me anything

Explanation / Answer

It is given that P(N)=0.4, P(N or V)=0.9 and P(N and V)=0.2

We need to find P(V)

It is given as P(N or V)=P(N)+P(V)-P(N and V)

this means P(V)=0.9-0.4+0.2=0.7

Thus correct answer is A

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