Explanation please?
A bag contains 6 oranges, 10 grapefruits, and 8 tangerines. A piece of fruit is chosen from the bag at random. What is the probability that a grapefruit is NOT chosen?

Question

Explanation please? 
A bag contains 6 oranges, 10 grapefruits, and 8 tangerines. A piece of fruit is chosen from the bag at random. What is the probability that a grapefruit is NOT chosen?

anonymous · Answer

how many aren't grapefruit?  that is your numerator and the total number of fruit will be your denominator.

anonymous · Answer

or you could use the complement... P(not grapefruit) = 1 - P(grapefruit).

you'll get the same answer

anonymous · Answer

Thank you. ^^

anonymous · Answer

you're welcome!