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Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityAddition theoremEasy2 minQB

MathematicsEasysingle choice

Three groups of children contain respectively 3 girls and 1 boy; 2 girls and 2 boys; 1 girl and 3 boys. One child is selected at random from each group. The probability that the three selected consists of 1 girl and 2 boys is

Options:

Answer:

Solution:

$\frac{3}{4} \times \frac{2}{4} \times \frac{3}{4} + \frac{1}{4} \times \frac{2}{4} \times \frac{3}{4} + \frac{1}{4} \times \frac{2}{4} \times \frac{1}{4} = \frac{26}{64}$

Stream:JEESubject:MathematicsTopic:ProbabilitySubtopic:Addition theorem

⏱ 2mℹ️ Source: QB

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