GAUSS7 2019 Problem 5

Based on the graph shown, what is the mode for the amount of rainfall for the week?

Image

Answer Choices
A. 9 \mathrm{~mm}
B. 12 \mathrm{~mm}
C. 3 \mathrm{~mm}
D. 15 \mathrm{~mm}
E. 6 \mathrm{~mm}