Which of the following are necessary conditions to perform, Ask an Expert

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Which of the following are necessary conditions to perform inference in regression? (Select all that apply).
Select one or more:

There should not be any extreme outliers that influence the results unduly.
The standard deviation of the values of y around the regression line should be the same regardless of the values of x.
The distribution of the values around the regression line should have a normal distribution.
The values of x should NOT have a correlation with the values of y.
The x values must have a normal distribution centered at 0.
The values of y must have a normal distribution centered at 0.

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