4. The sales, in millions of pesos, of a certain company are shown in the table below. Year 1 2 4 7 8 10 Sales Y 12 15 17 18 16 19 21 20 22 24 a. Determine the regression equation. b. Make a graph of regression analysis.

4. The sales, in millions of pesos, of a certain company are shown in the table below. Year 1 2 4 7 8 10 Sales Y 12 15 17 18 16 19 21 20 22 24 a. Determine the regression equation. b. Make a graph of regression analysis.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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10) Using advertised prices for used Ford Escorts a linear model for the relationship between a car's age and its price is found. The regression has an R2-87.4%. Write a sentence summarizing what R2 says about this regression. A) The age of the car explains 9.35% of the variation in price. B) The price of the car explains 12.6% of the variation in age. C) The age of the car explains 87.4% of the variation in price. D) The price of the car explains 87.4% of the variation in age. E) The age of the car explains 12.6% of the variation in price. Solve. Round to two decimal places if necessary. 11) At one college, 68% of students have credit cards. A credit card company, looking for new customers, sets up a booth at the college. If they pick students at random, how many students should they expect to talk to before finding one who does not have a credit card? A) 32 B) 3.13 D) 68 C) 0.32 E) 1.47
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