QUESTION 5 The correlation coefficient ranges between Can take any integer value (no decimal points) 0 to 100 (percentage score) 0 and 1 O -1 and 1 QUESTION 6 One of the following is NOT a measure of dispersion. Range Median or midpoint O Inter quartile range O Variance QUESTION 7 A dummy variable is used When we want to throw a variable out but still want to keep the number of variables the same As a pacifier when we deal with a cranky dataset When the model has very low predictive power. When the sample size is too small O When we are dealing with a categorical variable All Answers to save all answers