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3 cards from this section. Quick, good the night before a test.
What is a Bar Graph?
Think about how bars are used to compare amounts.
Define a Histogram.
Consider how it relates to intervals.
What type of graph uses bars to show frequency for different categories?
Think about how categories are visually represented.
True or False: A histogram is used for categorical data.
Consider the type of data.
Given a set of monthly rainfall data for a city over a year, design a histogram and describe the possible trends you observe.
Look for high and low rainfall months.
You have data on students' scores in a test: [50, 60, 70, 80, 80, 90, 100]. Create a frequency polygon for this set. What does it tell you?
First, create the histogram and then find midpoints of each bar.
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