Abag contains 11 blocks numbered from 1 to 11. two blocks are selected from the bag at the same time. let event e = the two numbers are not even. how many outcomes are in the complement of e? a) 10 b) 20 c) 70 d) 90

Event E is the two numbers are not even.
The complement of event E is the two numbers are even.
The number of outcomes of the complement of event E is 5 * 4 = 20, but since the outcome 2, 4 is the same as the outcome 4, 2, you need to divide the number of outcomes by 2.

10