Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): A useful way of expressing mortality in a cohort is in terms of the number of deaths divided by the total person-years over which the group is observed. Reason (R): Individuals are often observed for different periods of time, so the unit used for counting observation time is the person-year instead of the total number of persons. In the light of the above statements, choose the most appropriate answer from the options given below:

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Medical Science · Medicine

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Both (A) and (R) are correct and (R) is the correct explanation of (A)

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Answer 1

(A) is not correct but (R) is correct

Answer 2

(A) is correct but (R) is not correct

Answer 3

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

Answer 4

Both (A) and (R) are correct and (R) is the correct explanation of (A)

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