According to Statistical Notations, What Does Σ Stand For

question 11

Multiple Choice

According to statistical notations, what does Σ stand for?

• A) to act as a summation operator
• B) to represent sample statistics
• C) to represent population measures
• D) to represent the number of items in a population

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Definitions:

Regression Line

A line that best fits a set of data points in linear regression analysis, showing the general direction in which the data tend to go.

Prediction Interval

An estimate of the interval within which future observations will fall, with a certain probability, given what has already been observed.

One-Time Occurrence

An event or happening that takes place once and is not repeated.

API Gravity

A measure of how heavy or light a petroleum liquid is compared to water, used in the oil and gas industry to classify oils.