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2019 AMC 8 Question 10

AMC8 · 2019 AMC 8

Question 10

The diagram shows the number of students at soccer practice each weekday during last week. After computing the mean and median values, Coach discovers that there were actually $21$ participants on Wednesday. Which of the following statements describes the change in the mean and median after the correction is made?

Question illustration
  1. The mean increases by $1$ and the median does not
    change.
  2. The mean increases by $1$ and the median
    increases by $1.$
  3. The mean increases by $1$ and the median increases by
    $5.$
  4. The mean increases by $5$ and the median increases by
    $1.$
  5. The mean increases by $5$ and the median increases by
    $5.$