Q. 394.5( 2 Votes )

(i) There are 30

Answer :

(i) Total number of cards = 30


Number divisible by 3 = 3,6,9,12,15,18,21,24,27,30


P(probability that the number on the selected cards is not divisible by 3) =


(ii) P(E) = 0.8


P(not E) = 1-0.08 =0.92


(iii) P (the probability of the 2 students passing the examination) = 1-0.895 = 0.105


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