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Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityGeneral (Event SS, Definitions, Odd against/Favour)Medium2 minPYQ_2007

MathematicsMediumsingle choice

A pair of fair dice is thrown independently three times. The probability of getting a score of exactly $9$ twice is

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Answer:

Solution:

Probability of getting score $9$ in a single throw $= \frac{4}{36} = \frac{1}{9}$ Probability of getting score $9$ exactly twice $=^{3} C_{2} \times (\frac{1}{9})^{2} \times \frac{8}{9} = \frac{8}{243}$ .

Stream:JEESubject:MathematicsTopic:ProbabilitySubtopic:General (Event SS, Definitions, Odd against/Favour)

⏱ 2mℹ️ Source: PYQ_2007

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