Data Display and Visualization Concepts

This video tutorial guides seventh graders on selecting appropriate data displays for various situations. It covers different types of graphs and plots, including bar graphs for categorical data, box plots for large data sets, circle graphs for percentages, histograms for frequency data, line graphs for changes over time, and dot plots for frequency on a number line. The video also provides guidelines for choosing the right data display based on the type of information, the display's purpose, and how it will be analyzed.

What is the main purpose of this video tutorial?

• To explain the history of data visualization.

• To discuss the importance of data collection.

• To teach seventh graders how to select appropriate data displays.

• To provide a detailed analysis of statistical data.

Which type of graph is best for displaying data in categories?

• Line Graph

• Bar Graph

• Box Plot

• Circle Graph

What type of data is suitable for a bar graph?

• Only numerical data

• Only non-numerical data

• Both numerical and non-numerical data

• Data that changes over time

What does each bar in a bar graph represent?

• A percentage

• A different category

• A single data point

• A range of data

Which graph is used to show variation in a large data set?

• Line Graph

• Box Plot

• Bar Graph

• Circle Graph

What is the median in a box plot?

• The middle value of the data set

• The largest number in the data set

• The smallest number in the data set

• The average of the data set

What does a circle graph show?

• Data changes over time

• Data broken into parts or percentages

• Frequency of data

• Data in categories

What should the total percentage in a circle graph always equal?

• 50%

• 75%

• 150%

• 100%

Which graph is used to display frequency of data divided into equal intervals?

• Histogram

• Bar Graph

• Line Graph

• Dot Plot

What is the key difference between a histogram and a bar graph?

• Histograms are circular, bar graphs are linear

• Histograms show percentages, bar graphs show frequencies

• Histograms use ranges, bar graphs use categories

• Histograms use categories, bar graphs use ranges