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Total variation-explained variation

Using the definitions from problem 6, define the following terms and how they relate to each other:

a. Total variation

b. Explained variation

c. Unexplained variation

d. Coefficient of determination

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## Q : Estimate the population proportion

A telephone survey commissioned by the New Zealand Health service found that 16% of New Zealanders consume more than 10 alcoholic beverages /week. The data were collected from random selection of 2006 adult NZers. To estimate the population propor