Question

A jar of marbles has 5 blle marbles, 3 red

marbles, and 4 green marbles. What is the
probability of drawing a marble that is
blue, and then, after replacing it, drawing
a marble that is green?

Answer 1

13.9%

Explanation:

guessing that bile=blue

prob drawing blue × prob drawing green

=5/12 × 4/12

=20/144

=13.9%

if bile is a seperate colour

prob=0%

because there are no blues