Graphs – data displays We will explore 3 types today. Bar Graphs, Frequency charts, and Histograms. We will do a quick review of other graphs and their uses. Higher learning will be done today

Types of graphs and their uses. percentages Line Graph  Change over time Bar Graph  Distinct categories Groups data into intervals Displays data from a frequency chart

Example of a circle graph

Example of a Line Graph

Bar Graph - what does a bar graph look like?

Title label Shows distinct categories But no discrete data If you need to know details this is NOT the graph to use.

IntervalsTallyfrequency 0 - 5|||| || |||3 Frequency Chart or table – arranges data in equal intervals or groups. No discrete data is present.

Use the following data to create a frequency chart (or table) Number of hours students spent watching TV Create intervals Make sure that you include the smallest number and the largest number. Each interval must have the same number of entries. What would you suggest? You have 2 minutes – turn your timers Would work

Now let’s create our frequency chart. Our data was: | 0 4|||| frequencyTallyIntervals 7|||| ||

IntervalsTallyfreq 1-10|||| || |||| |||| |1 Now let’s make a histogram using the frequency chart data TV Watched students hours What do you notice?

Your turn now – Use the data below Use Sage and Scribe structure to create a frequency chart Change roles then create the histogram Number of pets owned by students