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Question

# Describe the distribution and any interesting patterns you notice in the stem-and-leaf plot. Interpret your findings in terms of the number of medals won in the 2016 Summer Olympics.

Solution

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The majority of the values are in the 0 stem and 1 stem so the majority of the countries won 0-19 medals. This also means that if you rotated the plot so it resembled a number line, the peak would be on the left side. The distribution would then be skewed right.

There are no medals won for 30-40 and 71-120 so these areas of the plot are gaps and mean no country won 30-40 medals or won 71-120 medals.

The data value of 121 at the bottom of the plot is very far from the other values so it is an outlier. The data value of 121 was the number of medals for the United States so this outlier means the United States won significantly more medals than the other countries.

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