Polar Bears Are White, Which Makes Them Difficult to See

question 44

True/False

Polar bears are white, which makes them difficult to see as they stalk seals; their white fur is an example of an adaptation.

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Definitions:

Sum of Squared Errors

The total of the squared differences between the observed values and the values predicted by a model or the mean.

Variation

A measure of the spread or dispersion of a set of data points within a dataset.

Null Hypothesis

A default hypothesis that there is no significant effect or difference, and any observed variation is due to chance.

Normally Distributed

Describes a distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.