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$Let E be an event which is neither a certainty nor an impos- sibility. If probability is such that P (E) = 1 + λ + λ^{2} and$
$P (E^{'}) = (1 + λ)^{2} in terms of an unknown λ . Then P (E) is =$

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Correct option is B

P(E)+PE′=1=1+λ+λ2+(1+λ)2or 2λ2+3λ+1=0or (2λ+1)(λ+1)=0or λ=−1,−12Then, P(E)=1+(−1)+(−1)2=1 (not possible) =1+−12+−122=12+14=34

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Let E be an event which is neither a certainty nor an impos- sibility. If probability is such that P(E)=1+λ+λ2 and PE′=(1+λ)2 in terms of an unknown λ. Then P(E) is =

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

$Let E be an event which is neither a certainty nor an impos- sibility. If probability is such that P (E) = 1 + λ + λ^{2} and$
$P (E^{'}) = (1 + λ)^{2} in terms of an unknown λ . Then P (E) is =$