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Statistics (266)
STAB22H3 (208)
Ken Butler (34)
Lecture

# STAB22-LEC09-(10,11).docx

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School
University of Toronto Scarborough
Department
Statistics
Course
STAB22H3
Professor
Ken Butler
Semester
Fall

Description
STAB22 LEC9Questions Confused about something from the notes Email mailtoarq6mecomCHAPTER 10 full ended with the beginning of Chapter 11Notes about Midterm40 Multiple ChoiceCovers up to what we get to on this Thurs lecturecheck website for room assignmentsFor all the details please checkhttpwwwutscutorontocabutlerb22 there are questions on the old midterms about sample surveys and experimental design THIS WILL NOT BE ON THE MIDTERMthe reason these are here is bc the old textbook covered them113 CHAPTER 9 CORRELATION WITH SUBSETS OF DATA Example cars MPGweight xvarweight yvarMPG can divide data into two groups cars with good gas mileageie MPG25 cars with bad gas mileageie MPG25 then get a correlation for each of these subgroups and compare it to the correlation retrieved from all the cars no exclusions when it comes to MPGwe are dividing the whole data into 2 groups and finding a sep line for each one Then we are comparing the correlations retrieved from each of these sep lines to that of the correlation retrieved for taking into account all the data points ex how does correlation compare with 2 sep groups of cars vs to all cars114 CORRELATIONSRESTRICTEDRANGE PROBLEM
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