If Variables with a Multivariate Normal Distribution Have Covariances That

question 29

Multiple Choice

If variables with a multivariate normal distribution have covariances that equal zero, then

• A)the correlation will most often be zero, but does not have to be.
• B)the variables are independent.
• C)you should use the χ² distribution to calculate probabilities.
• D)the marginal distribution of each of the variables is no longer normal.

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Definitions:

Quantitatively

Pertaining to the measurement or assessment of quantities or amounts, often involving numerical data and statistical methods.

Consumer Price Index

A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food, and medical care, often used as an indicator of inflation.

Market Basket

A selected set of goods and services used to track changes in prices, often for the purpose of measuring inflation or the cost of living.

Pay Equity

The principle of compensating employees equally for jobs of equal value regardless of gender, ethnicity, or other non-performance-related factors.