Question

Maria pulls colored marbles out of a bag one at a time. Her results are shown in the table below.

Color Outcomes
Blue 36
Yellow 42
Black 18
White 24

Based on the outcomes, if 20 more marbles are pulled out of the bag and replaced, how many marbles can be expected to be white?

Answer 1

4

Explanation:

P(white) = 24/120

set up a proportion based on these results:

24/120 = x/20

cross-multiply:

120x = 480

x = 4