Question

A marble is drawn at random from the bag shown below. The bag contains 3 green, 4 yellow, 5 blue, and 8 pink marbles. What is P(not green)?

Answer 1

P (not green) = 17/20

Explanation:

Given the following number of marbles:

Green : 3

Yellow : 4

Blue : 5

Pink :8

Total number of marbles = 3 + 4 + 5 + 8 = 20 marbles

if we draw 1 marble at random from the bag, the probability that the marble IS green,

P(Green) = 3/20

The probability that the marble is NOT green is,

P(Not Green)

= 1 - P(Green)

= 1 - 3/20

= 17/20