Question

for a random event A, p(A) :p(not a) =6:15 find p(not a)
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Answer 1

Answer:

3/7

Step-by-step explanation:

Answer 2

Answer : 5/7

Step-by-step explanation:

Let P(A) = 6x

P(/A) = 15x

P(A)+P(/A )= 1

6x+15x = 1

21x = 1

x = 1/21

P(A)= 6x = 6*1/21 = 6/21 = 2/7

P(/A)= 15x = 15*1/21 = 15/21 = 5/7

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