Resting heart rate was measured for a group of subjects and then the subjects drank 250ml of
coffee. Ten minutes later their heart rates were measured again. The change in heart rate followed
a Normal distribution with a mean increase of 7.3 beats per minute and a standard deviation of
11.1. (a). A negative value for change in heart rate implies that the persons heart rate went down.
What proportion of people had heart rates that went down? (Hint: a heart rate change < 0)? (b).
99% of heart rate changes lie in what range? (c). What is the 30th percentile of the changes in
heart rate?.
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Resting heart rate was measured for a group of subjects and .pdf
1. Resting heart rate was measured for a group of subjects and then the subjects drank 250ml of
coffee. Ten minutes later their heart rates were measured again. The change in heart rate followed
a Normal distribution with a mean increase of 7.3 beats per minute and a standard deviation of
11.1. (a). A negative value for change in heart rate implies that the persons heart rate went down.
What proportion of people had heart rates that went down? (Hint: a heart rate change < 0)? (b).
99% of heart rate changes lie in what range? (c). What is the 30th percentile of the changes in
heart rate?
