Which of the Following Is True

question 88

Multiple Choice

Which of the following is true?

• A)In trend analysis, the independent variable is time only if the equation is linear.
• B)The number of time periods in a centred moving average is always even.
• C)If the seasonal index for December sales is 120, this means that December sales tend to be 120% higher than the 'average' month.
• D)The cyclical component of a time series refers to repeating patterns that have a period of a year or less.

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Definitions:

Expression

A combination of variables, numbers, and operations without an equal sign.

A

Often used to denote a variable in equations or to represent a constant value in various mathematical contexts.

Positive Exponents

Refers to exponents that are greater than zero, indicating the number of times a base is multiplied by itself.

Rules Of Exponents

Guidelines that describe how to handle powers when multiplying, dividing, or raising them to other powers.