Statistics and Probability

Marcos purchases a top-up card for his pre-paid cell phone. His remaining balance, B, can be modeled by the equation B = 35 - 0.1n, where n is the number of minutes he's talked since purchasing the card. a) How much money was on the card when he purchased it? $ Which intercept is this? Select an answer v b) How many minutes will he have talked when he runs out of money? minutes. Which intercept is this? |Select an answer v c) What is the slope of this equation? What are the units on the slope? Select an answer v The following is data for the first and second Quiz scores for 8 students in a class. N First Quiz Second Quiz 9 5 11 10 13 11 14 12 15 13 16 14 17 16 18 19 Plot the points in the grid below. Plot these points: W X y 2 8 8 4 4 6 2