If adams high and jefferson high both lose 150 students each, madison high's population increases by 100 students, and both
lincoln high and grant high gain 50 students each, what happens to the mean of the population of washington county schools?
a)
the mean increases by 20.
b)
the mean remains the same
the mean decreases by 20.
the mean decreases by 100

40 describe the outliers from the scatter plot.

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.

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315