Find the probability that a number selected at random from the numbers 1,2,3,...35 is a prime numberultiple of 7    a multiple of 3 or 5

Explanation

Given : Numbers selected from 1 to 35

Total number of outcomes = 35

(i) Let E1 = Event of getting a prime number .


Numbers which is a prime number are` = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31`


Number of outcome favourable to `E1 = 11`


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