Which of the following examples represents a proportional relationship?

A Wes is making an online purchase. He
pays $3 per item plus $5 for shipping.

B Wendy's cell phone plan is $20 a
month plus $0.10 per minute.

C Kristin is buying lunch meat from her
local deli. It is $4.95 per pound.

D Jessica is a member of the local book
club. She pays $10 a month for her
membership but gets her books for $3
each.

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =