Question

The probability of NOT drawing a red marble out of a bag containing 3 blue, 2 green , 8 yellow , 4 red , and 3 orange marbles.

Answer 1

`(4)/(5)`

Explanation:

Total number of marbles

= 3+2+8+4+3

= 20 marbles

P(not red)

=

`(3 + 2 + 8 + 3)/(20) \\ = (16)/(20) \\ = (4)/(5)`

or P(not red)

=

`1 - (4)/(20) \\ = 1 - (1)/(5) \\ = (4)/(5)`