Question

If 'A' is an event in a random experiment such that P (A): PCA) = 5:11 then P(A) is
A] 5
B] 11/16
C]5/11
D]1/5
​

Answer 1

Answer:

Given that,

P( A )P(A)

= 115

We know that,

P( A )=1−P(A)

Now,

1−P(A)P(A) = 115

⇒11P(A)=5−5P(A)

⇒16P(A)=5

⇒P(A)= 165

and P(A )=1−P(A)=1−165

= 1611

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