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Which of the following best describes spatial autocorrelation? 

Based on the output from TukeyHSD() shown below, what regions are NOT statistically different from one another (assume we are using the traditional 95% confidence level)?

In spatial autocorrelation analysis, a low-high outlier (LH) cluster occurs when:

What is a primary assumption of OLS regression? 

If you are trying to estimate regression coefficients in R, what function should you use? 

Sociology 1301 Spring 2026 begins

A parent discloses that they use herbal supplements in their child who is on warfarin. What is best next step?

You are working with a daily precipitation variable named “DailyRain” within a data frame called “TexasPrecip” in R. You want to pull out just the days that received rain and save this as a new data frame called “wetDays”. What code snippet would accomplish this?

The first moment of a distribution equals: 

For a normal six-sided dice, what is the probability of rolling a multiple of 2?   Formula: P(A) = F(A)/F(E)