Update model-slr.qmd (#508)

abolute <- absolute and one 's'

Author: gungorMetehan

model-slr.qmd

@@ -959,7 +959,7 @@ The resulting dashed line shown in @fig-elmhurstScatterW2Lines demonstrates this
 #|   y-axis. The relationship is moderate negative and linear. Two lines are
 #|   superimposed on the scatterplot. One line is fit to the data by minimizing
 #|   the sum of squared residuals, i.e., the least squares line. The other line
-#|   is fit to the data by minimizing the sum of the abolute value of the residuals.
+#|   is fit to the data by minimizing the sum of the absolute values of the residuals.
 #| fig-asp: 0.6
 ggplot(elmhurst, aes(x = family_income, y = gift_aid)) +
   geom_point(alpha = 0.8) +