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An outlier is an observation that appears to be unusual or not well described relative to a simple characterization of a dataset. A discomfiting possibility is that these data come from a different population than the one intended to be studied.

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The qqnorm and qqline residuals plot yield a straight line output

can it be considered as normality of residuals or is there any error pertaining to the regression model designed? the dependent variable is numerical while the predictor is characters