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# Organization of Data Frequency Tables - PowerPoint PPT Presentation

Organization of Data Frequency Tables. 2.2. Frequency Table. Keeps track of the number of times an outcome occurs. Ordering the data first makes a frequency table easier Tally marks can be used. Create a Frequency Table for the given Data. Test Scores

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## PowerPoint Slideshow about ' Organization of Data Frequency Tables' - penny

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### Organization of DataFrequency Tables

2.2

• Keeps track of the number of times an outcome occurs.

• Ordering the data first makes a frequency table easier

• Tally marks can be used

• Test Scores

• 82 75 55 98 84 76 57

• 75 92 98 82 82 55 98

• 75 98 55 74 66 57 98

• A Frequency Table where the values fall into classes.

• Lower class limit – the smallest number in a class.

• Upper class limit – The largest number is a class.

• Class width- The size of the class.

• Class midpoint – The midpoint of the class. (upper + lower)/2

• Relative Frequency – Expressed as a percent.

Create a Frequency Table using classes.

• Test Scores

• 82 75 55 98 84 76 57

• 75 92 98 82 82 55 98

• 75 98 55 74 66 57 98