Is there a relationship between a college student’s GPA and the number of hours that student works per week? The following data is based on a random sample. The random variable x represents number of hours worked per week and y represents GPA. ? 15 7 30 20 60 ? 3.2 3.4 3.0 3.3 2.1 a. Plot a scatter diagram of the above data. b. Estimate the sample correlation coefficient r as positive, zero, or negative. c. Interpret your results from parts a. and b
Is there a relationship between a college student’s GPA and the number of hours that student works per week? The following data is based on a random sample. The random variable x represents number of hours worked per week and y represents GPA. ? 15 7 30 20 60 ? 3.2 3.4 3.0 3.3 2.1 a. Plot a scatter diagram of the above data. b. Estimate the sample correlation coefficient r as positive, zero, or negative. c. Interpret your results from parts a. and b
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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Is there a relationship between a college student’s GPA and the number of hours that student
works per week? The following data is based on a random sample. The random variable x
represents number of hours worked per week and y represents GPA.
? 15 7 30 20 60
? 3.2 3.4 3.0 3.3 2.1
a. Plot a
b. Estimate the sample
c. Interpret your results from parts a. and b
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