Problem
This data is going to be plotted on a bar chart. \begin{tabular}{c|c} Person & Test Scores \\ \hline Wilfred & 13 \\ \hline Hayley & 34 \\ \hline Patrick & 41 \\ \hline Kaylee & 29 \end{tabular} Part of the axes are shown below. If the chart is 7 rows tall, what number should replace $A$ to give the vertical axis the best scale for plotting the data?
Solution
Step 1 ：Find the best scale for the vertical axis: \(\frac{highest_score}{rows}\)
Step 2 ：Calculate: \(\frac{41}{7} \approx 6\)
Step 3 ：\(\boxed{6}\)
