Bar graphs, histograms, and scatter plots should always show the y-axis all the way down to zero.

Question

Quizplus · Accepted Answer

Bar graphs typically should start at zero on the y-axis to accurately reflect the magnitude of the values being represented. However, histograms and scatter plots do not always need to start at zero on the y-axis, as they are used to show distributions and relationships between variables, respectively, where the focus is often on the shape of the distribution or the pattern of the data points, not necessarily on the absolute values.

Bar Graphs, Histograms, and Scatter Plots Should Always Show the Y-Axis