Problem 10 (2019 AMC 8)

AMC 8Easy

From module Mean, Median, Mode, and Harmonic Mean

Problem

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? [See figure in original PDF]

Select an answer

The mean increases by $1$ and the median does not change.
The mean increases by $1$ and the median increases by $1$.
The mean increases by $1$ and the median increases by $5$.
The mean increases by $5$ and the median increases by $1$.
The mean increases by $5$ and the median increases by $5$.

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