Question

1. survey of the MBA students at a university in the United States classified the country of origin of the students as seen in the table.

	Two-year MBA	Evening MBA	Total
Asia	31	33	64
Europe	5	0	5
Latin America	20	1	21
Middle East	5	5	10
North America	103	65	168
Total	164	104	268

1. What percent of all MBA students were from North America?

2. What percent of the Two-year MBA students were from North America?

3. What percent of the evening MBA students were from North America?

4. What is the marginal distribution of origin?

1. Using the table below, calculate the variance of X, variance of Y, standard deviation of X, standard deviation of Y, the covariance between X and Y, the correlation coefficient between X and Y, and find the regression line assuming X is the independent variable (find the slope and the intercept). Show your work.

X	Y	X-Xbar	Y-Ybar	(X-Xbar)^2	(Y-Ybar)^2	(X-Xbar)*(Y-Ybar)
3	1
8	5
10	13
15	18
19	23

Answer 1