To calculate the average number of heartbeats per second, we need to know the total number of heartbeats over the total time in seconds.
From the information given in your description of the graph, the y-axis represents heartbeats ranging from 0 to 18, and the x-axis representing time ranges from 0 to 12 seconds. Without access to the specific data points on the graph, I can provide a general approach:
- Determine the total number of heartbeats over the period of time indicated by the graph (sum up the heartbeats at different time intervals).
- Calculate the average by dividing the total number of heartbeats by the total time (12 seconds).
If the graph shows, for instance, that the total number of heartbeats recorded is 18 over the 12 seconds, you would calculate it as follows:
Average heartbeats per second = Total Heartbeats / Total Time Average heartbeats per second = 18 beats / 12 seconds = 1.5 beats per second.
Based on the options you've provided, the choice that corresponds with this type of calculation would typically be presented as either a fraction or a decimal:
- 1.5 beats per second could be expressed as \( \frac{3}{2} \) beats per second, which seems to correspond with the answer "1 Start Fraction 1 over 2 End Fraction beats per second."
Without the specific data points from the graph, I cannot give you a definitive answer, but you can follow this method to derive the accurate average based on the graph you are referencing. If you have further details or specific data points from the graph, feel free to share!
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