Twice Per Year,when Day and Night Are Equal in Length,the

question 243

Multiple Choice

Twice per year,when day and night are equal in length,the Sun is at one of two positions in the sky known as equinoxes.These points are the intersections of which two planes in the sky?

• A) the celestial equator and the ecliptic
• B) the celestial meridian and the celestial equator
• C) the ecliptic and the celestial meridian
• D) the ecliptic and the arctic circle

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Definitions:

Sample Size

It refers to the number of observations or individuals taken from a population for the purpose of statistical analysis.

Population Standard Deviation

An indicator of the extent of variability or spread within a complete set of data points in a population.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values deviate from the mean of the set.

Mean Purchase

The average value or amount of purchases made over a specific period of time.