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I can create histograms.

I can create histograms. I can interpret histograms. Warm Up Write an equation to match the sentence: 3 less than the product of 2.5 and a number equal 30. Miss Arnold- Pass around height sheet!. What do you know about. bar graph? double bar graph? Histogram?. Bar Graph.

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I can create histograms.

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  1. I can create histograms. I can interpret histograms. Warm Up Write an equation to match the sentence: 3 less than the product of 2.5 and a number equal 30. Miss Arnold- Pass around height sheet!

  2. What do you know about • bar graph? • double bar graph? • Histogram?

  3. Bar Graph • A bar graph can be used to display and compare data • The scale should include all the data values and be easily divided into equal intervals.

  4. Double Bar Graph • Can be used to compare two related sets of data

  5. Histogram • Histogram is a bar graph that shows the frequency of data within equal intervals. • There is no space in between the bars.

  6. How to make a histogram?

  7. The table below shows the number of hours students watch TV in one week Make a histogram of all the data.

  8. Step 1 • Make a frequency table of the data. Be sure to use equal intervals

  9. Step 2 • Choose an appropriate scale and interval for the vertical axis. The greatest value on the scale should be at least as great as the greatest frequency.

  10. Step 3 • Draw a bar for each interval. The height of the bar is the frequency for that interval. Bars must touch but not overlap. • Label the axes and give the graph title

  11. What can we interpret from this graph? Most students watch ____ hours of TV. 4-6

  12. How many students were surveyed? I hope you didn’t say 20 or 17. It’s all of the students….look back at the number of frequency's and add those up….to get 48 students.

  13. I can create histograms. I can interpret histograms.

  14. Let’s make a histogram of our heights, in feet & inches.

  15. Classwork • Now create a histogram from the frequency table. • **Use your notes!**

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