Curiosity Found That Water Used to Exist in the Gale

question 34

Short Answer

Curiosity found that water used to exist in the Gale Crater in the form of ________ and________.

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Definitions:

Normally distributed

A term describing a distribution that follows a normal curve or bell curve, indicating symmetry around its mean.

Random sample

A selection made in such a manner that every subset of the population has an equal probability of being picked.

Margin of error

An expression of the amount of random sampling error in a survey's results.

Population variance

A measure of the dispersion of all data points within a population, squared from the mean of the population.