The average number of heartbeats per second can vary based on factors like age, fitness level, and health. However, a general average resting heart rate for adults is around 60 to 100 beats per minute.
To convert this to beats per second:
- 60 beats per minute = 1 beat per second
- 100 beats per minute = \( \frac{100}{60} \approx 1.67 \) beats per second
Thus, a typical resting heart rate is approximately between 1 to 1.67 beats per second.
From your options, 1 (1 beat per second) to 2/3 (approximately 0.67 beats per second) can be accepted as lower estimates of average resting heart rate, while 1 1/2 beats per second (1.5 beats per second) and 2 beats per second (120 beats per minute) are on the higher side and could represent someone who is more active or under certain conditions, like exercise.
In summary, an average resting heart rate would generally fall between 1 to 1.67 beats per second.
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