Probability Practice Test 2

Question : 27 of 37

Marks: +1, -0

One of the two exclusive events must occur the chance of one is

2/3

of the other, then odds in favour of the other are

Solution:

Let

P(B) = x, P(A) = {2x}/3

P(A) + P(B) = x + {2x}/3 = 1

⇒ {5x}/3 = 1

⇒ x = 3/5

P(A) = 2/5, P(B) = 3/5

Odds in favours of B

= {3/5}/{1-3/5}=3/2

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