50
the table represents four brands of potato chips (w, x, y, and z). three random samples of 50 subjects each were collected. subjects were asked to taste each brand of chip and pick their favorite brand. use the mean deviation to determine which chip has the greatest amount of variation in the population.
a) brand w
b) brand x
c) brand y
d) brand z
sample 1 sample 2 sample 3
brand w 14 18 17
brand x 10 9 10
brand y 10 9 7
brand z 16 14 16
total 50 50 50