Math, asked by dharani1432, 1 year ago

A sample space has only three points a1,a2,a3.if a1 is likely to occur as a2 and a3 is twice as likely to occur as a3 then p(a3) is​

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Answered by hrn21agmailcom
9

Answer:

1/5

Step-by-step explanation:

only 3 points means

P(a1)+P(a2)+P(a3)=1

P(a1) = P(a2)

P(a2) = 2P(a3)

P(a1) = 2P(a3)

now, P(a1)+P(a2)+P(a3) =1

2P(a3)+2P(a3)+P(a3) = 1

5P(a3) = 1

P(a3) = 1/5

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