COP 2073 Exam 3 Review

A _______ is a graph where the height of each bar represents how many observations are present for a single value or category. (hint: count())

• Box Plot

• Bar Plot

• Histogram

• Scatter Plot

A _______ is a plot where each bar represents the frequency of values within a certain range, called 'bins'

• Box Plot

• Bar Plot

• Histogram

• Scatter Plot

A _______ is a graph which visualizes the 1st, 2nd, and 3rd quartiles, also known as the Interquartile Range (IQR) for a set of continuous values by category

• Box Plot

• Bar Plot

• Histogram

• Scatter Plot

A ________ is a plot which plots points on an (x, y) plane.

• Box Plot

• Bar Plot

• Histogram

• Scatter Plot

______ is the process of creating summary tables and visualizations to explore the contents of a dataset.

• EDA - Exploratory Data Analysis

• EA - Explorative Analysis

• DEA - Data Exploration Analysis

• DA - Data Analysis

We can map the visual properties, or aesthetics, of a visual to variables in a dataset by using which function?

• map()

• aes()

• ggplot()

• plot()

size, shape, and color are examples of what?

• aesthetics

• features

• factors

• variables

The GGPlot library implements the ____ of ____, which is a coherent system for describing and building graphs.

• grammar, graphics

• structure, visuals

• framework, functions

• collection, charts

A dataset is considered to be ____ if each value is placed in its own cell, each variable in its own column, and each observation in its own row.

• tidy

• pre-processed

• organized

• good

is this data considered 'tidy' in R?

• Yes

• No