According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly select peanut M&M’s from an extra-large bag looking for a red candy. (Round all probabilities below to four decimal places; i.e. your answer should look like 0.1234, not 12.34%.)
a) Compute the probability that the first red candy is the seventh M&M selected.
b) Compute the probability that the first red candy is the seventh or eighth M&M selected.
c) Compute the probability that the first red candy is among the first seven M&M’s selected.
d) If every student in a large Statistics class selects peanut M&M’s at random until they get a red candy, on average how many M&M’s will the students need to select? (Round your answer to two decimal places.)
red M&M’s
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