Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityGeneral (Event SS, Definitions, Odd against/Favour)Easy2 minPYQ_2023

MathematicsEasysingle choice

The probability of getting sum more than 7 when a pair of dice are thrown is:

Options:

Answer:

Solution:

Here $n (S) = 6^{2} = 36$
Let $E$ be the event "getting sum more than 7" i.e. sum of pair of dice $= 8, 9, 10, 11, 12$
i.e. $E = ⎩ ⎨ ⎧ (2, 6) (3, 6) (4, 6) (5, 6) (3, 5) (4, 5) (5, 5) (6, 5) (4, 4) (5, 4) (6, 4) (6, 6) (5, 3) (6, 3) (6, 2) ⎭ ⎬ ⎫$
$∴ n (E) = 15. ∴$ Req. prob $= \frac{n ( E )}{n ( S )} = \frac{15}{36} = \frac{5}{12}$

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

⏱ 2mℹ️ Source: PYQ_2023

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