You are a physician who is interested in the role of exercise in cardiac health.

Question

You are a physician who is interested in the role of exercise in cardiac health. You ask a sample of your patients to keep a log of their exercise routines to see whether exercise frequency correlates with blood pressure. The sample scores for number of exercise sessions during a reference week are organized into the following frequency distribution table. Calculate n. sigma x, and M. The two patients who reported more than five exercise sessions during the reference week late admit that they were dishonest, so you decide to discard their data. Calculate the new n, sigma x, and M.

Explanation / Answer

solution:-
a)
n = 8
  
x = 71

M = 71/8 = 8.875

b) after discarding those two patients who reported more tha five exercise sessions the total exercise sessions will be 0,4,10,18,16,6,7,

n = 7

x = 61

M = 61/7 = 8.7

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