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Question 18M.3.HL.TZ1.b.i

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.3.HL.TZ1.b.i
Level HL Paper 3 Time zone TZ1
Command term Comment Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
18M.3.HL.TZ1.b.i

The graph shows the results of a study of the incidence of coronary heart disease (CHD) in different age groups of men participating in a study carried out by the National Heart, Blood and Lung Institute.

Comment on the claim that the bar chart proves that old age causes CHD.

[1]

Markscheme

a. data show correlation (increased chance of CHD with age) not causation

OWTTE.

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