Suppose 2 distinct integers are chosen from 1 through 9, inclusive. What is the probability that they are both odd?

Lightning
Mar 16, 2018

#1**-1 **

5 odds 4 evens

5 out of 9 to be odd on first and 5 out of 9 for the second 5/9 x 5/9 = 25/81

(this assumes all of the 1-9 numbers are available both draws)

ElectricPavlov
Mar 16, 2018