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# I can create histograms. - PowerPoint PPT Presentation

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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## PowerPoint Slideshow about ' I can create histograms.' - elvis-jensen

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Presentation Transcript

### 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!

• bar graph?

• double bar graph?

• Histogram?

• 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.

• Can be used to compare two related sets of data

• Histogram is a bar graph that shows the frequency of data within equal intervals.

• There is no space in between the bars.

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

Step 1 in one week Make a histogram of all the data.

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

Step 2 in one week Make a histogram of all the data.

• 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.

Step 3 in one week Make a histogram of all the data.

• 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

What can we interpret from this graph? in one week Make a histogram of all the data.

Most students watch ____ hours of TV.

4-6

How many students were surveyed? in one week Make a histogram of all the data.

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.

### I can create histograms. in one week Make a histogram of all the data.

I can interpret histograms.

Let in one week Make a histogram of all the data.’s make a histogram of our heights, in feet & inches.

Classwork in one week Make a histogram of all the data.

• Now create a histogram from the frequency table.