________ is a measure of how two set of data vary simultaneously and is calculated by taking the average of each product of the deviation of a data point.
A)Covariance
B)Correlation
C)Causation
D)Period

Question

Quizplus · Accepted Answer

Covariance is a statistical measure used to determine the relationship between the movement of two variables. It measures how two variables move together, with a positive covariance indicating that the variables move in the same direction and a negative covariance indicating that the variables move in different directions. The formula for covariance involves taking the average of each product of the deviation of a data point, making A) the correct choice. Correlation, on the other hand, measures the strength and direction of a relationship between two variables, rather than how they vary together, making B) a less precise choice. C) Causation is not a statistical measurement, but rather a concept in which an action or event leads to a result. D) Period has no relevance to this statistical concept.

________ Is a Measure of How Two Set of Data