Data Visualization Charts

Charts

Charts

A graph/picture of quantitative (number) data

Data Chart is a type of

Diagram or graph that organizes and represents a set of numerical or qualitative data

T OR F: A chart is a graphical representation for data visualization, in which data is represented by symbols

True

Are charts a way to condense large amounts of data into an easy-to-understand format?

Yes

Charts come from

Summarized tables

Cross-tabulation tables provide a wealth of information about the

Relationship between the variables

Visually portray ____ data

Quantitative

Charts give a quick impression of the

Number data

Charts can create a picture that can ____ quickly than just the numbers alone

Communicate

Charts allow you to see ___ or ___ that you may not be able to see if you are looking at just number data

Patterns and Trends

Charts allow you to make relative ____ more quickly

Comparisons

Chart Junk

Chart elements that do not contribute to the message

Chart junk skews the ____ and makes it difficult to understand the real data being display

Depiction

An incorrect charting choice can lead to

Poor judgement of the message

A correct chart can lead to

Right and faster decisions and display information and meaning behind the numbers

Column

Use to compare differences across categories. Height of column conveys number

Bar

Use to compare differences across categories. Length of bar conveys number

Stacked Column/Bar

Good for displaying cross-tabulation, emphasis on horizontal axis categories

Clustered Column/bar

Good for displaying cross tabulation, emphasis on legend categories

Histogram

Chart used for counting #s between a lower and upper limit.

Line

Use to show trend for a number variable over a category such as time

Combination chart

Combine different chart types such as column and Line

X-Y scatter

Used to show relationship btw two number variables (X and y variables)

Box Plot

Visual summary of the distribution and central tendency of a dataset

T OR F: Column and bar charts are effectively the same

TRUE

A bar chart is used if yo have

Long labels to display for each category.

Clustered Column Bar chart has an emphasis on

Legend categories

A stacked column chart has an emphasis on

Horizontal axis categories (Total sales)

Data values are displayed side-by-side in a ___ ___ that allow all data points to be compared because there is a single baseline

Clustered charts

____ ____ Data are stacked one over the other. They work better when you want to compare the whole and the part to whole relationship

Stacked cHart

Histogram

Chart used for counting numbers btw a lower and upper limit.

A histogram represents the ____ of ____

Frequency distribution of continuous variables

Conversely, a column graph is a ____ ____ of _

diagrammatic comparison of discrete variables

A histogram is drawn in such a way

That there is no gap btw the columns

Histogram presents ___ data whereas column graph shows ____ data

Numerical, Categorical