To calculate the average number of heartbeats per second based on the graph you described, we need to find the total number of heartbeats over the total time period.
Assuming that the graph indicates a resting heart rate of 12 beats over a time span of 12 seconds (as an example to work with), we can calculate the average heart rate as follows:
- Total heartbeats = 12
- Total time in seconds = 12
Average heartbeats per second = Total heartbeats / Total time = 12 beats / 12 seconds = 1 beat per second
However, without access to the specific details of the graph, such as the exact resting heart rate shown, I cannot provide an exact calculation. If we take the context from your question where you provided numerical options, the most likely points from given that context suggest:
If average heartbeats were somewhere in between 0 and 18 over 12 seconds, then it seems plausible the average could fit the option of "1 beat per second" if it were 12 heartbeats total.
Thus, if your heart rate during those 12 seconds is around 12 beats, the average number of heartbeats you could pick confidently would be:
1 Start Fraction 1 over 2 End Fraction beats per second (for lower heart rates).
Please confirm the actual heart rate displayed on the graph for specificity!