9. Which of the following is true about the difference between bivariate regression and multiple regression analysis?

Select one:

a. Multiple regression analysis involves multiple predictor variables that predict a single outcome (criterion) variable, whereas bivariate regression analysis involves a single predictor variable that predicts a single outcome (criterion) variable.

b. Multiple regression analysis involves multiple predictor variables that predict multiple outcome (criterion) variables, whereas bivariate regression analysis involves a single predictor variable that predicts multiple outcome (criterion) variables.

c. Multiple regression analysis involves a single predictor variable that predicts a single outcome (criterion) variable, whereas bivariate regression analysis involves multiple predictor variables that predict a single outcome (criterion) variable.

d. Multiple regression analysis involves a single predictor variable that predicts multiple outcome (criterion) variables, whereas bivariate regression analysis involves multiple predictor variables that predict a single outcome (criterion) variable.

1. The basic difference between macroeconomics and microeconomics is: A. microeconomics explores the causes of inflation while macroeconomics focuses on the causes of unemployment. B. microeconomics concentrates on the behaviour of individual consumers and firms while macroeconomics focuses on the performance of the entire economy. C. microeconomics concentrates on individual markets while macroeconomics focuses primarily on international trade. D. microeconomics concentrates on the behaviour of individual consumers while macroeconomics focuses on the behaviour of firms. 2. Scarcity exists because of: A. unlimited wants and limited resources. B. the allocation of goods by prices C. specialization and division of labor. D. the market mechanism. 3. Production in a society is allocation efficient so long as it uses its resources to produce as much as it can. True FalseIn a single channel automatic car wash, cars arrive following Poisson distribution at the rate of 20 per hour. It takes an average of 2 minutes to wash a car, and the service time follows exponential distribution. Find the following operating characteristics of the system (10 marks). a) What is the probability that 4 cars arrive within 10 minutes? b) What is the probability that no car arrives within 5 minutes? c) What is the probability that a car is washed in less than 1.5 minutes.ECE 103 Engineering Programming Spring 2018 Primary Exercise In some lasers, the monochromatic light beam within the system has a Gaussian intensity (imradiance) profile (Figure 1). This occurs when the electromagnetic radiation's transverse electric and magnetic fields are described by a Gaussian function. Reference: https://en.wikipedia. org/wiki/Gaussian_bear Iniemily Figure 1: Gaussian intensity profile Interestingly, the physics states that the gainsjan beam will have a minimum "waist" we and then diverge due to diffraction (Figure 2)