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Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityConditional probabilityMedium2 minQB

MathematicsMediummultiple choice

Students $A, B, C$ pass independently with probabilities $3/10, 1/2, 2/5$ . Given exactly one passes, $P (A$ passes $) = m / n$ in lowest terms. Which numbers are less than $m + n$ ?

Options:(select one or more)

Answer:

A, B, C

Solution:

P(exactly one)=44/100 and P(A alone)=9/100. Thus the conditional probability is 9/44, so m+n = 53.

Stream:JEESubject:MathematicsTopic:ProbabilitySubtopic:Conditional probability

⏱ 2mℹ️ Source: QB

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