Which variable is the response (dependent) variable and which is the explanatory
ID: 3246143 • Letter: W
Question
Which variable is the response (dependent) variable and which is the explanatory variable Write the least square regression and the slope ..ooo T-Mobile 1:29 PM Done 26 of 27 3. Government statisticians in England conducted a study of the relationship between smoking and lung cancer. The data concern 25 occupational groups and are condensed from data on thousands of individual men Two are presented for each occupational group. The smoking index is the the average number of cigarettes smoked per day by men in the oecupational group to the average momber of cigarettes smoked per day by all men. The mortality index is the ratio of the rate of deaths from lang cancer among men in the particular occupational group to the rate of deaths from lung cancer among all men(Source: Moore, David S., and Gorge P McCabe (1989). Introduction to the Practice of Statistics. Original source Occupational Mortality: The Registrar General's Decennial Suppliement fo England and Wales, 1970-1972, Her Majesty's Stutionery Offics 1978.) Office, London Scatter Plot of "Lung Cancer mortality ratio versus "Smoking ratio by occupation" From the scaterplot above, what number below appears to be closer to the cormelation between the Mortality index and the Smoking index? Why? d.-0.72 e. 0 to have aretuey tight ehwren the c. 0.999 072 (%) b.-0999 0.72 b apbearS op mertalihy nder and puard inear re lahonsh mertaluty index and smobing tndcx smobun upwar 4 ]Explanation / Answer
Dependent variable is Lung Cancer Mortality Index
Explanatory variable is Smoking ratio by Occupation
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