Data Visualizations

Name of diagram is ...

• Bar chart

• Histogram

• Scatter plot

• Streamgraph

________________is the presentation of quantitative information in a graphical form

• Data visualization

• Data exploration

• Data improvisation

• Data magnification

• bar chart

• line chart

• Column

• pie

• Pie chart

• Cake chart

• Weel chart

• Mix chart

In order to search through very large data sets, computer programs are created to analyze the data. These programs search for patterns in the data.

Which of the following is NOT a scenario in which you would need this type of computer program to search for patterns involving multiple variables?

• An online clothing store needs to analyze the products that customers are viewing and suggest other items they might be interested in.

• A video hosting site needs to analyze the views for all videos and create a list of the top ten most viewed videos.

• A credit card company needs to analyze data to ensure that they can identify fraudulent charges and freeze the credit card before more damage can be done.

• A grocery store needs to analyze the items purchased by customers and print out coupons for items they may also be interested in.

What is data?

I. Computer readable information

II. Information collected about the physical world

III. Programs that process images

IV. Graphs and charts

• II and IV

• I and II

• I, II, and IV

• I, II, III, and IV

Which of the following statements is NOT a benefit of using computers to process data?

• People can use computers to find patterns in data and make predictions

• Computers help people visualize data so that it is easy to extract useful information

• Websites can spy on people and gather large amounts of personal data without the user knowing

• Computers are able to easily process, manipulate, and display large amounts of data in a short amount of time

Which of the following statements is true about data visualizations?

• Visualizing data has only been possible since computers have become widespread.

• Visualizations take many forms, from tables to charts to images.

• There is always one exact visualization that should be used to show a particular aspect of a dataset.

• The only way to extract information from data is by using a visualization.

In which of the following would a chart BEST help to accomplish the accompanying task described?

• You want to track the number of times you say “hello” today

• Your school wants to track how many people attend the football games over time throughout the school year

• You are trying to figure out what happens when different colors are mixed

• You need instructions on how to bake a cake

Which of the following statements are true about using visualizations to display a dataset?

I. Visualizations are visually appealing, but don’t help the viewer understand relationships that exist in the data

II. Visualizations like graphs, charts, or visualizations with pictures are useful for conveying information, while tables just filled with text are not useful.

III. Patterns that exist in the data can be found more easily by using a visualization

• I and II

• II and III

• III only

• I, II, and III