This Question: 2 pts 1 of 15 (1 complete) This Test: 48 pts possible A student i

Question

This Question: 2 pts 1 of 15 (1 complete) This Test: 48 pts possible A student in an intro stats course collects data at her university. She wants to model the relationship between student jobs and GPA. She collects a random sample of students and asks each for their GPA and the number of hours per week they work. What graph should she make to check the conditions for linear regression? Choose the correct answer below. A. A histogram of the work hours data B. A scatterplot of work hours and GPA ° C. A histogram of the GPA data 0 D. Side by side pie charts of the two variables

Explanation / Answer

B. A scatterplot of work hours and GPA

Conditions of linear regression can be check only by comparing the effect of one variable on the other. Individual histograms wont be able to make this comparison. So, options A and C are incorrect. A pie chart also cannot show the relation bet6ween two variables. So, the answer connot be D also

The answer is B. A scatterplot of work hours and GPA

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