The average heartbeat in an lifetimes is 2 and a half billion times
You would do the experiment. Ex. If chocolate is given to kids then, there heartbeat will be faster. To test the hypothesis you have to give chocolate to kids, then measure there heartbeat.
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Average heartbeat which is just an average number is 72 beats per minute. 72beats*60mins*24hrs*365.25days=37,869,120. Remember people don't have the same heartbeat rate and no one has the same heartbeat rate all year or every minute.
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For an average adult human, 5 percent of the blood supply enters or leaves the heart with each heartbeat.
52 beats per minute.It is Valid.
The average heartbeat per day is 100,000.
During an average lifetime: over 2.5 billion times.
Between 145 and 180 are the normal range (on average).
Considering that the teenager is calm, resting, the average heartbeat is 76 to 82 bpm.
there wont be a sertain number but there will be a average sorry i dont no but try google