Stem and Leaf Plots

Stem and leaf plot questions are a way of displaying a set of data in a concise manner. The name refers to the fact that the leading digit (usually the tens digit) is removed from each data point, and instead is used as a label for a row that includes all data points with the same tens digit.

Stem and Leaf Plot questions will look like this:

The important thing to remember is that each “leaf” represents a different data point, while the stem only refers to their tens digit.

The question asks about students who jumped at least 60 inches, so for data points  ≥ 60. There are 5 students in the 6-stem row and 3 students in the 7-stem row. This means that 8 students had a score of at least 60, out of a total of 19 students.

The odds are therefore 

819, so the answer is K.