Tìm diện tích hình phẳng giới hạn bởi y^2=4-x và y^2=4-4x

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

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.

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300