True or false: In R, it is possible to read a data set directly from a text file located on disk, on a file server, or on a web server. Feedback 3 / 3 (100.0%) Removing records that contain missing or inconsistent data from a data set before analysis is an example of _________. data mining missing values reduction purging Feedback 0 / 3 (0.0%) Which of the following is NOT an example of data scrubbing as described in the text? reducing data handling inconsistent data handling missing data handling marginal data Feedback 0 / 3 (0.0%) In R, assuming the existence of a data frame called Employees, the command Employees[1:100, 4:9] would show ___________. employee records 4 through 9, 100 times columns 4 through 9 for the first 100 employee records columns 1 through 100 for employee records 4 through 9 columns 4 through 9, 100 times Feedback 3 / 3 (100.0%) Descriptive statistics that give insight into norms in a data set are called measures of _______. commonality central tendency similarity norms Feedback 3 / 3 (100.0%) To conduct correlational analysis in R, use the _______ function. relate corr mat cor Feedback 3 / 3 (100.0%) Correlation coefficients are generally considered strong if they are at least _________. 0.2 or -0.2 0.95 or -0.95 0.6 or -0.6 none of the above Feedback 3 / 3 (100.0%) The output of a correlation is called a ________. matrix core set similarity index match table Feedback 3 / 3 (100.0%) The correlational algorithm developed by ________ is specifically designed to control for outliers in data. Kendall Thompson Spearman Pearson Feedback 0