Last week, to introduce the concept of sampling distribution, I used an activity involving M&M candies. Students received cups of about 50 candies and counted the number of each color. Initially, they guessed that there are more reds than blues. As our sampling distribution showed, it was quite clear that the proportion of blues is higher. According to many web sources, the proportion of blues is 24% and reds is 13%. Our results were very close. It was a fun activity; students ate the chocolate afterwards.
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