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SACR 3080 FINAL EXAM QUESTIONS WITH COMPLETE ANSWERS ...

SACR 3080 Final Exam Questions and Answers Graded A+ In the formula for r, what is one function of the SDs in the denominator? - Answers The SDs in the denominator is there to ensure that r stays in the range from minus to plus one. Why is the numerator of Pearson's r referred to as the "Covariance"? - Answers In its form, the Covariance resembles a Variance, and it shows how the two variables move together In the formula for r, how is evidence of a positive association tallied up? ...

SACR 3080 Final Exam questions and answers passed

Mini-Exam 3-SACR 3080, chapters 10,11,12,13 questions with verified answers already passed1. What is the differ- ence between a sym- In this interpretation, gamma is said to provide the excess of concordant over discordant pairs (or vice versa) as a proportion of all such pairs A symmetric measure gives us the same result whichever variable is treated as independent. Examples include gamma and r. An asymmetric metric and an asymmet- measure gives ditterent results, depending on which ...

SACR 3080 - Mini Exam 4 questions with verified answers graded A+ already passed1. obtain a histogram for sal_now, using the default number of breaks, then a second histogram with a number of breaks of your choosing. hist(sal_now) hist(sal_now, breaks = 6) 2. obtain a barplot for language barplot(table(language)) 3. obtain a mean, a 95% trimmed mean, and a median for sal_now 4. obtain an inter-quartile range and a stan- dard deviation for sal_begin 5. obtain a boxplot showing s...