With data-driven decision making, organizations use data for what purpose?

To make all non-trivial business decisions To spy on their competition To manipulate people into buying things they don't need To sell to 3rd parties for a profit

Which one of the following is a great add-on package for data cleaning?

tidyr ggplot2 lattice forecast

Which function is suitable to copy and paste data snippets into R?

scan paste plot lm

What two parameters are estimated in a simple linear regression model?

y-intercept and slope Magnitude Direction and magnitude x and y

Which one of the following is not part of data preparation as defined and taught in this course?

Forecasting Running queries Data cleaning Formatting the object