Abag contains a total of 100 black and white marbles. without looking in marble is chosen, recorded, and placed back in the bag. the student records a black marbles and two white marbles. predict the number of black marbles in the bag.

Apath 3 m wide runs around the inside of a square park inside 60 m.find the area of the path.pls

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.

Which one ? is the answer and how to find this answer