Acup contains 3 blue paper clips,2 red paper clips, and 5 silver paper clips. what is the probability of not drawing a red paper clip

Short Answer 0.8

Remark
The total number of possible draws is
3 Blue + 2 Red + 5 silver = 10
There are two ways of solving this, both of which will be used later on.

Method 1
If you don't draw a read paper clip, that means you will draw a silver or blue paper clip.


Method Two
The other way is to draw a red one and take that probability away from 1. 
P(red) = 
1 - 0.2 = 0.8 Same answer.

The answer here would be 10