Bar Graph • What is a bar graph? • A bar graph is used to compare and display data in vertical or horizontal bars. • Example: Inches Biomes
Inches Reading a Bar Graph Biomes • Which biome has the highest yearly rainfall? • Rainforest • Which biome has the least amount of rainfall? • Tundra • Approximate the range of the rainfall data for the biomes. • 150-25= 125
Create a bar graph to model the given data Billion Metric tons Continent
Double Bar Graph Years Countries
Frequency Tables • 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
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?
MAKING A FREQUENCY CHART WITH INTERVALS First step is to decide what you intervals should be. Find the smallest number and the largest number.
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. X X X XXXX X XXXXX 3 4 5 6 7 8 9 10