Mathematics - Probability Question with Solution | TestHub

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

MathematicsEasysingle choice

A coin is tossed twice. Then, the probability that atleast one tail occurs is

Options:

Answer:

Solution:

The sample space is $S = {HH, HT, TH, TT}$
Let $E$ be the event of getting atleast one tail
$∴ E = {HT, TH, TT} ∴ Required probability p = \frac{Number of favourable outcomes}{Total number of outcomes} = \frac{n ( E )}{n ( S )} = \frac{3}{4}$

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

⏱ 2mℹ️ Source: PYQ_2023

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