1. 6-3&6-4: B AR GRAPHS, FREQUENCY TABLES AND LINE PLOTS

2. B AR G RAPH What is a bar graph? A bar graph is used to compare and display data in vertical or horizontal bars. Example: Inches Biomes

3. 1.Which biome has the highest yearly rainfall? Rainforest 1.Which biome has the least amount of rainfall? Tundra 1.Approximate the range of the rainfall data for the biomes. 150-25= 125 Reading a Bar Graph Biomes Inches

4. C REATE A BAR GRAPH TO MODEL THE GIVEN DATA Coal Reserves (Billion metric tons) AsiaEurop e Africa 69540466 Billion Metric tons Continent

5. D OUBLE B AR G RAPH Life Expectancies in Atlantic South America BrazilArgentinaUruguayParaguay Male (yr)59717370 Female (yr)6979 74 Years Countries

6. F REQUENCY T ABLES What does the word frequency mean? Frequency refers to how many times a specific value occurs in a data set. What is a frequency table? A frequency table lists items together according to their frequency in the data sets

7. EXAMPLE OF A FREQUENCY TABLE Using tally marks: Each student in Mrs. Chloe’s class recorded their fingerprint pattern. Which type is most common in Mrs. Chloe’s class? Whorl Loop Loop Loop Loop Arch Loop Whorl Arch Loop Arch Loop Whorl Arch Fingerprint Patterns PatternTalliesFrequency WhorlIII3 LoopIIIII II7 ArchIIII4

8. MAKING A FREQUENCY CHART WITH INTERVALS Number of Representatives per State in the U.S. House of Representatives 7164526611231122 2010546728 16859 132213331121196521 2619303111939 First step is to decide what you intervals should be. Find the smallest number and the largest number. Number of Representatives per State in the U.S. House of Representatives Number 0-56-1112-1718-2324-2930-3536-4142-4748-53 Frequency 22183402001

9. LINE PLOTS What is a line plot? A line plot uses a number line and x’s to show frequencies of values. Example: Students in Mr. Lee’s class, each ran several miles in a week. Create a line plot of the data. Number of miles run 8 3 5 6 7 8 5 5 3 6 10 7 5 3 4 5 6 7 8 9 10 X X X X X X X X X X X X