The probability that edward purchases a video game from a store is 0.67 (event a), and the probability that greg purchases a video game from the store is 0.74 (event b). the probability that edward purchases a video game (given that greg has purchased a video game) is 0.67. which statement is true? a. events a and b are independent because p(a|b) = p(a) b. events a and b are dependent because p(a|b) = p(a) c. events a and b are independent because p(a|b) = p(b) d. events a and b are dependent because p(a|b) p(a)

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Evaluate the expression. (9 + 5)(3 + 2)0

Find the dimensions of the circle. area = 64π in.² r= in.