Suppose you ask a friend to randomly choose an integer betwe

Suppose you ask a friend to randomly choose an integer between 1 and 10, inclusive.

What is the probability that the number will be more than 5 or odd? (Enter your probability as a fraction.)

Solution

Those either more than 5 OR odd are

{1,3,5,6,7,8,9,10}

Which is 8 numbers out of the 10 possible,

Thus,

P(more than 5 or odd) = 8/10 or 4/5 [ANSWER, 4/5]