3 years ago

Which relation is a function?Please Help Answers are in the picture Thanks.‼️

Mathematics

2 answers:

vladimir2022 [97]3 years ago

5 0

The answer to o this question is the fourth answer or d

Keith_Richards [23]3 years ago

3 0

This might help u find the relation...

A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. For example, consider the following sets X and Y.

Hope this helps...

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(2 points) The least squares method requires that the variance σ2????σϵ2 of the error variable ????ϵ is a constant no matter wha

attashe74 [19]

Answer:

C. heteroscedasticity

Step-by-step explanation:

The OLS regression assumption of error variance being constant irrespective of independent variables, is called Homoscedasticity.

Var (u | x) = σ^2 (u) ;

where u = error term, x = independent variable, σ^2 (u) = constant error variance

The violance of this assumption ie Var (u | x) is related to independent variable x, is called Heteroscedasticity.

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