highlander

Member
Jul 8, 2009
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Colombo
රණසිOහගේ අප්පු;10683239 said:
Suppose a fair die is tossed once.
Let A = {odd number occurs} and B = {prime number occurs}.
Then P(A U B) =

out of the 6 numbers in the die- 1,2,3,4,5,6:
odd numbers, A = {1,3,5}
prime numbers, B = {2,3,5}
So,
A U B ={1,2,3,5}
P(A U B) = 4/6 = 0.6666666666666.....