1. Draw, analyze, and use bar graphs and histograms. Organize data into a frequency distribution table. 14.1 The Frequency Distribution

2. Line Plot Line plot A display of statistical data on a number line so that patterns and variability in data can be determined. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 5’3”5’4’”5’5”5’6”5’7”5’8”5’9”5’10” Height of Viking’s Cheerleaders

3. Bar Graph A graphic form using bars to make comparisons of statistics. Note: Has spaces between bars. Back-to-back bar graph A special bar graph that shows the comparisons of two sets of related data. Plotted on a coordinate system with the horizontal scale repeated in each direction from the central axis. Netflix DVD VCR 20151055 1520 Year2000 Movies Year2010

4. Frequency Distribution A system of organizing data by determining classes and the frequency of values in each class. Range- Difference between the greatest and the least values in the set. Class Intervals- Range of each class. Classes should all be equal in size and are often multiples of 5. Class Limits- Upper and lower values in each interval. Class Marks- Midpoints of the classes. Retail Management Testing Scores ScoresFrequency 60-699 70-7910 80-8912 90-993

5. Histogram A type of bar graph in which the width of each bar represents a class interval and the height of the bar represents the frequency in that interval. 060 708090100 0 2 4 6 8 10 12 14

6. Frequency Polygon A broken line graph drawn by connecting the class marks on a histogram. 060 708090100 0 2 4 6 8 10 12 14

7. Example problems Page 893 3,5,6