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Which of the following is a discrete quantitative variable?  

In the summer of 2011, the Chicago libraries recorded the number of participants per branch of the library versus the number of books read from that branch.  They wanted to predict the number of books read at each branch based on the number of participants in the summer program.  The least squares regression equation was  books read = -657.0 +24.74 participants For one branch of the library the number of participants was 1001. The number of books read was 18416.  Find the residual. 

The cigarette taxes among the states have a mean of 168 cents per pack. The values go from 30 to 440 cents. Assume that the data is normally distributed. Which of the following is a plausible value for the standard deviation?

A least squares regression equation was calculated to predict the college gpa based on high school gpa. The least squares regression equation was yhat = 0.84x + 1.34.  Interpret the slope, if applicable.

The patient with advanced chronic mesenteric ischemia is most likely to be: 

Which is not considered a tributary of the MPV?  

The following is an excerpt from a New York Times article; To Treat Depression, Drugs or Therapy by Richard Friedman, M.D. The article appeared on January 8th at 8am.    . . .Dr. Helen Mayberg, a professor of psychiatry at Emory University, recently published a study in JAMA Psychiatry (Links to an external site.) that identified a potential biomarker in the brain that could predict whether a depressed patient would respond better to psychotherapy or antidepressant medication. Using PET scans, she randomized a group of depressed patients to either 12 weeks of treatment with the S.S.R.I. antidepressant Lexapro or to cognitive behavior therapy, which teaches patients to correct their negative and distorted thinking. Over all, about 40 percent of the depressed subjects responded to either treatment.   What would be the “group of depressed patients” described above?

Describe the following scatterplot using all four characteristics.  

In the Spring of 2017, a sample of 102 homes for sale in Gainesville was collected. The sale price and square footage of the homes were recorded.  The least squares regression equation was price = -58857+162.9*foot  For one house, the square footage was 1498 and the price was 159900 dollars. Find the residual. 

The image below is a normal representation of the MPV.