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STAT141 (6)
Midterm

Cheatsheet allowed into Exam 1

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Department
Statistics
Course
STAT141
Professor
Oksana Kotovych
Semester
Winter

Description
• Range = Max – Min • IQR = Q3 - Q1 (between Q3 and Q1 is where the central 50% of data lies) • Bar charts are categorical, histograms are numerical (the relative frequency graph and frequency graphs are the same, they only have different vertical scales) • a> a steer weighing 1000 pounds is ____(z) standard deviations below the mean. • 68-95-99.7% Rule • z score table - area left of line • linear association - appears as a cloud or swarm of points in a generally consistent straight form, not curved/exponential moderately strong association - clustered • Correlation (r) - strength of relationship b/w x & y variables (for linear relatioReanships) Association - relationship b/w 3 variables • Residuals- (y - y hat) vertical distance from the po
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