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Question

On a particular day, at a crossing in a city, the various types of 240 vehicles going past during a time interval were observed as under:

Type of vehicleTwo - wheelersThree - wheelersFour - wheelersFrequency846888

what it is the probability that a selected vehicle is a two-wheeler?

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Solution

ANSWER:
Total number of vehicles going past the crossing = 240
Number of two-wheelers = 84
Let E be the event that the selected vehicle is a two-wheeler. Then,

required probability = P(E) = 84240=0.35


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