What is the % variation in the food energy content in a packet chips? Full question in the description box.

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1 Answer
Apr 29, 2018

See below.

Explanation:

The R^2R2 value basically tells you what percent of the variation in your response variable is accounted for by the variation in your explanatory variable. It provides a measure of the strength of a linear association.

In this situation, R^2 = 0.7569R2=0.7569.

Multiplying this decimal by 100100, we find that 75.69%75.69% of the variation in energy content of a packet of chips can be explained by variation in their fat content. Of course, this means that 24.31%24.31% of the variation in energy content is accounted for by other factors.