Proportion of brown candies = 0.15
P(yellow or brown) = 0.20+0.15 = 0.35
Proportion of green = 1 - (0.20+0.20+0.20+0.15+0.15) = 0.10
P(red or orange) = 0.20+0.20 = 0.40
P(not red or orange) = 1 - 0.40 = 0.60
Correct statement is:
If we randomly select one candy at random from all plain M&M's that are produced, there is a 60% chance that candy will not be red or orange.
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