Calculate the residual (error) in the predictions by computing the difference between the predicted salary and the actual salary values. Add the residual values as a new column named Residual to the dataframe sal. Print the first 5 rows of the dataframe sal to the output.

Which tab should you open to find the option for adding a header?

Which phrase is the best definition of a pivottable a a table containing data that is organized horizontally b a table used to calculate financial pivot values c a tool used to summarize data d a table containing specific formatting

You are to write a series of steps that anyone could follow to solve the following three problems: 1. even odd a. assume that someone tells you a number (an integer number) b. you hear the number and respond with the word even or odd 2. average a. assume that someone tells you between 3 and 5 numeric values. b. you hear the numbers and respond with the average is some number 3. dog or cat a. explain to a child the differences between a dog and a cat. b. your explanation could be used by a child or anyone to distinguish the difference between a dog and a cat