Question

The accompanying graph shows the heart rate, in the beats per minute, of a jogger during a 4 minute interval. What is the rage of the jogger's heart rate during this interval?

Answer 1

The range of the jogger's heart rate is defined by the interval from the minimum value to the maximum value, where we can have values in the y-axis.

Looking at the graph, the minimum heart rate is 60 bpm, and the maximum is 110 bpm, and we can have any value inside this interval.

So the range is:

`\text{range}=\lbrack60,110\rbrack`