Flashcards
Untitled
Cards in this deck (18)
- 1Frequency tableOrganizes quantitative data, partitions data into classes, shows how many data values are in each class
- 2ClassAn interval of values
- 3Frequencythe number of data in each class
- 4relative frequencythe proportion of data values in each class
- 5class widthlargest value - smallest value
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desired no. of values that fall within a class - 6Class boundariesadd 0.5 to the upper class limit and subtract 0.5 from the lower class limit
- 7Class midpointlower class limit + upper class limit /2
- 8Relative class frequencyClass freq. (F)
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total of all freq. (n) - 9Cumulative frequencySum of all frequencies for that class and previous classes.
- 10—------
- 11What is the class width?47- 1/6 = 7.6 -> 8
- 12What is the first class limit? Others too.1-8
- 13What are the class boundaries? (For first row).0.5-8.5
- 14What is the tally?14
- 15What is the frequency?14
- 16What is the class midpoint?1+8/2 = 4.5
- 17What is the relative frequency?14/60 = 0.23
- 18Cumulative frequency14 (becomes 35, then 46.....)
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- Flashcards on Untitled, created by Giordano Baratta on 16/02/2017.
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- Giordano Baratta
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