Question

A menu has 9 options, chicken, steak, fish, broccoli, spinach, two types of carrots and two breads, what is the complement of ordering bread

Answer 1

there are 9 options in the menu, thus the sample space is 9, there are two bread types from all 9 options, thus the favorable outcomes is 2.

the probably of ordering bread then is 2/9.

it's complement, namely the probability of not ordering bread, is just 1 - 2/9, namely 7/9, or about 0.78 or about 78%.