Some Salamanders Have Neither Lungs nor Gills

question 18

True/False

Some salamanders have neither lungs nor gills.

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Definitions:

Standard Normal

A normal distribution with a mean of zero and a standard deviation of one, used as the basis for z-scores in statistics.

Standard Deviation

A metric that calculates how much a dataset's values spread out or diverge from their average.

Normally Distributed

Refers to a type of continuous probability distribution where data points are symmetrically distributed around the mean, forming a bell-shaped curve.

Variance

A measure of the dispersion or spread of a set of data points in a data set, representing the average squared deviation from the mean.