Predicting a numerical outcome
Lab 5
Dr. Elijah Meyer
Duke University
STA 199 - Spring 2023
Feburary 28th, 2023
Lab 4
– Team Submission
– Attach ALL team members to submission on Gradescope
– Communicate!
– If you have more than 1 submission, reach out to your lab leader and communicate which one should be removed prior to the deadline.
Group Work
Do data scientists work in groups?
Data science has been described as requiring more teamwork than any other field of human activity
Group Work
Teamwork is the ability to work together toward a common vision. The ability to direct individual accomplishments toward organizational objectives. It is the fuel that allows common people to attain uncommon results.”
– Offer different skillsets
– Offer different perspectives
Group Work in 199
– Communicate
– Participate! You have something to add. Feel free to do so
– Exam 2 is individual. Be involved in lab learning so you master these skills
What if Group Work isn’t Working?
– Talk to each other?
– Hold each other accountable
– Talk to Lab-TA; Lab-Leader, Instructor
R-squared
– statistical measure in a regression model that determines the proportion of variance in the response variable that can be explained by the explanatory variable(s).
R-squared
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R-squared
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R-squared: Takeaway
– statistical measure in a regression model that determines the proportion of variance in the response variable that can be explained by the explanatory variable(s).
– The more variables you include, the larger the R-squared value will be (always)
