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If X and Y Are Two Variables with σx =

question 131

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If X and Y are two variables with σx = 3.8,σy = 4.2,and COV(X,Y)= −0.25,then V(X + Y)= 31.58.


Definitions:

Sexism

An attitude or behavior that discriminates against one sex, usually females, based on the assumed superiority of the other sex.

Genderism

Discrimination or prejudice against individuals on the basis of their gender identity or expression.

Homophobia

A fear and hatred of homosexuality.

Racism

Prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one's own race is superior.

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