Question

a bag contains exactly 18 solid-colored buttons: 3 red, 5 blue, and 10 white. what is the probability of randomly selecting 1 button that is not white?

Answer 1

`\qquad\qquad\huge\underline{{\sf Answer}}`

Total number of white buttons :

• 10

Total number of buttons in Total :

• 18

Total non - white buttons :

• 18 - 10 = 8

So, probability of randomly selecting 1 button that isn't white is ~

`\qquad \sf  \dashrightarrow \: p = ( non \: white \: )/(total)`

`\qquad \sf  \dashrightarrow \: p = (8)/(18)`

Or

`\qquad \sf  \dashrightarrow \: p = ( 4 )/(9)`