Question

A cup 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

Answer 1

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.

8/10 you have to see what they have in common which would be a 2.

8 divided by 2 is 4

10 divided by 2 is 5

8/10 simplified = 4/5

ANSWER IS 4/5

Answer 2

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.

`(Silver + blue)/(10) = (3 + 5)/(10) = (8)/(10) = \text{0.8}`

Method Two
The other way is to draw a red one and take that probability away from 1.
P(red) =
`(2)/(10) = \text{0.2}`
1 - 0.2 = 0.8 Same answer.