Asked by Brevin Goodlett on Sep 27, 2024
The variance of X must be non-negative; the variance of Y must be non-negative; hence the covariance of X and Y must be non-negative.
Variance
A statistical measurement of the spread between numbers in a data set, indicating how far each number in the set is from the mean.
Covariance
A measure that indicates the extent to which two variables change together, indicating the direction of their linear relationship.
- Gain an understanding of the foundational theories and attributes linked to the aggregate of variances and expected values.
Learning Objectives
- Gain an understanding of the foundational theories and attributes linked to the aggregate of variances and expected values.