To calculate the average number of heartbeats per second from the graph, you would generally need the total number of heartbeats from the starting point to the end point and the total time it took in seconds.
For example, if the line representing the resting heart rate shows a consistent number of heartbeats, you would take the observed value of heartbeats and divide by the total time in seconds (which is 12 seconds in this case).
If the graph shows a constant heart rate of, say, 12 beats at each time interval, you would calculate as follows:
- Total heartbeats over the time: 12 beats (holding constant) over 12 seconds = 12 heartbeats.
- Average heartbeats per second = Total heartbeats / Total seconds = 12 heartbeats / 12 seconds = 1 heartbeat per second.
Make sure to refer to the specific data points on the graph to extract the precise number of heartbeats at the selected times. If you can provide that information, I can help compute the average more accurately.