An analyst has constructed the following probability distribution for firm X's predicted return for the upcoming year. 
The expected value and the variance of this distribution are _____ and _____. Expected Value Variance
Definitions:
Population Variances
A measure of the spread of a population's values.
Sample Sizes
The number of observations or elements chosen from a population to be included in a sample, affecting the accuracy and reliability of statistical analysis.
F-test
A statistical test used to compare two populations' variances to ascertain if they come from distributions with equal variances.
Equal Variances
A condition in which two or more data sets have the same variance, indicating a similar degree of data spread around the mean.
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