The Pleistocene Epoch Began at Least ______

question 90

Multiple Choice

The Pleistocene Epoch began at least ______.

• A) in the 1600s A.D.
• B) 10,000 years ago
• C) over 20 million years ago
• D) 2.5 million years ago
• E) in the 20th century

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Definitions:

Standard Deviation

Standard deviation is a statistical measure quantifying the amount of variation or dispersion from the average in a set of data.

Control Limits

The boundaries in a control chart within which a process metric is considered to be in a state of control; exceeding these limits signals a potential problem or variability.

Sample Range

The difference between the largest and smallest values in a statistical sample, used as a measure of statistical dispersion or variability.

Sample Size

The number of observations or data points that are selected from a larger population for the purpose of statistical analysis.