An eight sided die is rolled repeatedly. We get 230 ones, 260 twos, 255 threes, 290 fours, 220 fives, 245 sixes, 268 sevens, and 232 eights. We wish to test whether it's plausible that the die is fair. Which type of test must we run? A. z-test test for one proportion B. regression     C. chi-square test for homogeneity D. goodness of fit chi-square test

If r = .60, then ______% of the variance in the scores of one variable is associated with the variance in the other score. Group of answer choices 83 36 49 70

The owner of a small company employs 6 people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The distances are: 52, 38, 15, 24, 15, and 39. The variance of the data set is