In R, we can look at the structure of the iris dataset by the following statement: Hint: Note that all variable names, package names and function names in R are case sensitive.   > struct(iris)   > str(iris)   > Struct(iris)   > Str(iris)

The residents of a housing development for senior citizens have completed a survey whereon they indicated how physically active they are and how many visitors they receive each week. Are these two varibles related for the 10 cases reported below?

A 3.3 Practice = Copy of New 3.3 Practi x E KRISTIN THOMPSON KRISTIN THOMPSON - X Word Search Maker .| bartleby + A docs.google.com/document/d/1fXyKjoSnSTpyJmSI9D9Jn65z5y4DOsfJlopkF97Vqm4/edit ВЕТА Copy of New 3.3 Practice * Share TURN IN File Edit View Insert Format Tools Add-ons Help Last edit was 4 hours ago A, P BIU A 100% Normal text Arial 11 + ... 1 1 2 3 6 7 Use the following information to answer the next 10 exercises. Forty-eight percent of all voters of a certain state prefer life in prison without parole over the death penalty for a person convicted of first-degree murder. Among Latino registered voters in this state, 55 percent prefer life in prison without parole over the death penalty for a person convicted of first-degree murder. Of all citizens in this state, 37.6 percent are Latino. In this problem, let • C = citizens of a certain state (registered voters) preferring life in prison without parole over the death penalty for a person convicted of first-degree murder. •…

The mtcars data set contains data on 32 cars from the 1974 Motor Trend US magazine. The data set has 11 variables that measure different aspects of the cars, such as miles per gallon (mpg), horsepower (hp), weight (wt), and number of cylinders (cyl). The data set can be used to study the relationship between fuel consumption and car performance, as well as other factors that affect the efficiency and design of the cars. What is the maximum and minimum number of the range regarding the explanatory variable for which the regression model can make valid predictions?

Suppose a researcher collects data on the air pollution levels, measured in milligrams per cubic meter, for both urban and rural areas in 35 states. The data is plotted with urban air pollution levels on the horizontal axis and rural air pollution levels on the vertical axis. Nevada is an outlier in the ?x‑direction. What must be true about this state? The urban air pollution levels for this state are much higher or lower than the rest of the states in the data set. The rural air pollution levels for this state are much higher or much lower than the rest of the states in the data set. This state is an influential observation. The rural air pollution levels for this state are much higher or lower than other states in the data set that have similar urban air pollution levels. The absolute value of the residual of this state is large.

please label each part