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You have the following data frame called pets: first_name  last_name  age  favorite_toy Shane    Johnson   17        bone Sonora      Smith   12      hair tie Arianna     Garcia    9       laser Pearl      Krabs    2           box What does pets[2:3,4] return?

Match the scenario to the visualization that would best answer the question/ situation. FYI – the axes values removed on purpose, so don’t rely on that to determine the right type of visualization.

We are conducting a study to see if weather temperature affects ice cream sales revenue ($). Which variable is the independent variable?

Match the code to the visualization

Create a function that returns the volume of a rectangular prism given the width, length, and height without using any built-in functions or package functions.

Match the following code to the graphs:

Is the following code valid (will it not throw an error)? You can assume the class variable is a character data type aka categorical.

What fields can benefit from data science?

Create a function that returns the first n rows and first m columns of a data frame. Set the default to n=5 and m =5. You can assume the input will have at least 5 rows and 5 columns. DO NOT any built-in function like tail() or slice().

Bonus: Look at the blue data. What might the R-squared value be close too?