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^2# 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 = 0.7569#.

Multiplying this decimal by #100#, we find that #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%# of the variation in energy content is accounted for by other factors.