Question

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

Answer 1

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.