1. Chapter 2.3 Bar Graphs and Pareto Charts

2. Bar Graphs A bar graph represents the data by using vertical or horizontal bars whose heights or lengths represent the frequencies of the data

3. Create a bar graph for the data The table shows the average money spent by first-year college students Electronics$728 Dorm décor$344 Clothing$141 Shoes$72

4. Pareto Chart A Pareto chart is used to represent a frequency distribution for a categorical variable, and the frequencies are displayed by the heights of vertical bars, which are arranged in order from highest to lowest X-axis variable is qualitative data

5. Steps for making a Pareto Chart 1.Arrange the data from the largest to smallest according to frequency 2.Draw and label the x and y axes 3.Draw the bars corresponding to the frequencies. Make bars the same width

6. Create a Pareto Chart for the data below on homeless populations CityNumber Atlanta6832 Baltimore2904 Chicago6680 St. Louis1485 Washington5518

7. Create a Pareto chart from a frequency distribution Blood TypeFrequency A5 B7 O9 AB4

8. With a little help from our friends… Making bar and Pareto charts using Excel! Pg. 92