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प्रश्न
A die is thrown once. What is the probability of getting a prime number?
उत्तर
GIVEN: A dice is thrown once
TO FIND: Probability of getting a prime number.
Total number on a dice is 6.
Prime numbers on a dice are 2, 3 and 5
Total number of prime numbers on dice is 3
`"We know that PROBABILITY"="Number of favourable event"/"Total number of event"`
`"Hence probability of getting a prime number" = 3/6=1/2`
`"Hence probability of getting a prime number "= 1/2`
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