Asked by oke obadiah

a number is picked from the set {1,2,3,-,18}.find the probability that it is either a multiple of 3 or a number less than 7
Answered by vincent
Maths
Answered by Reiny
"...either a multiple of 3 or a number less than 7"

only 2 elements satisfy that condition, namely the 3 and 6

so prob(of your event) = 2/18 = 1/9
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