Data Displays

Front

What is a data display?

Back

A data display is a visual representation of data that helps to organize, summarize, and communicate information clearly.

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What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data by showing the number of data points that fall within specified ranges (bins).

Front

What is the purpose of using intervals in a histogram?

Back

Intervals (or bins) are used in a histogram to group data points into ranges, making it easier to visualize the distribution of the data.

Front

What does it mean if intervals in a histogram overlap?

Back

Overlapping intervals in a histogram can lead to confusion and misinterpretation of data, as it may not accurately represent the frequency of data points.

Front

How do you determine the height of a bar in a histogram?

Back

The height of a bar in a histogram represents the number of data points (frequency) that fall within the corresponding interval.

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What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, but retains the original data values.

Front

How can you find the number of data points below a certain value using a data display?

Back

You can count the frequency of data points in the intervals that fall below the specified value in a histogram or other data display.

Front

What is the significance of labeling axes in a graph?

Back

Labeling axes in a graph is crucial for clarity, as it helps viewers understand what the data represents and the scale of measurement.

Front

What does it mean if a data display does not start at zero?

Back

If a data display does not start at zero, it can exaggerate differences in data and mislead viewers about the actual values.

Front

What is frequency in the context of data displays?

Back

Frequency refers to the number of times a particular value or range of values occurs in a dataset.