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Histograms & Frequency Tables. By Mr. Chancellor. Let say there was pitcher who has been pitching since 1995. the 2009 season will be his 15 th season pitching for one team and his 17 th overall. The following numbers are the wins he had earned each year of his career.

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Presentation Transcript
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Let say there was pitcher who has been pitching since 1995. the 2009 season will be his 15th season pitching for one team and his 17th overall. The following numbers are the wins he had earned each year of his career.

1992 2008

  • 8,6,16,14,12,17,6,6,9,11,11,12,16,7,17,10
what is a frequency table and a histogram

A Frequency Table is a table used to group data values into intervals

  • Histogram is a graph that displays data from a frequency table. A histogram has one bar for each interval of the table that contains the data values. The length of the bar indicates the frequency of the interval
What is a Frequency Table and a Histogram?
how to make a frequency table

Gather your data.

  • Decide how many classes will be in your frequency table.
  • Count the number of data points that fall into each class.
  • Construct your table
  • Create a title for your frequency table that accurately describes the data

8,6,16,14,12,17,6,6,9,11,11,12,

16,7,17,10

Step 1 Step 2 Step 3

Interval Tallies Frequency

6 - 9 wins IIIIII 6

10 – 13 wins IIIII 5

14 – 17 wins IIIII 5

How to make a Frequency Table
circle graph

6 - 9 wins IIIIII 6

  • 10 – 13 wins IIIII 5
  • 14 – 17 wins IIIII 5
Circle Graph