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Math 1070 Frequency of Distribution

by: Shama Desai

Math 1070 Frequency of Distribution Math 1070

Marketplace > Georgia State University > Statistics > Math 1070 > Math 1070 Frequency of Distribution
Shama Desai


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About this Document

These notes covers all the types of Frequency Distribution
Elementary Statistics
Rahman Husneara
Class Notes
25 ?




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This 1 page Class Notes was uploaded by Shama Desai on Monday September 26, 2016. The Class Notes belongs to Math 1070 at Georgia State University taught by Rahman Husneara in Fall 2016. Since its upload, it has received 5 views. For similar materials see Elementary Statistics in Statistics at Georgia State University.


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Date Created: 09/26/16
Chapter 2 Section 2.2  Frequency Distribution: Shows how data are parted within different  categories(classes)  Lower class Limits:  the smallest values in the different classes    Ex: Class interval: 10­19; 26­30; 80­100                    Lower Class Limits: 10, 26, and 80   Upper class Limits: the largest values in the different classes.  Ex: Class Interval: 10­19; 26­30; 80­100                      Upper Class Limits: 19, 30, and 100  Class Boundaries: The values that are used to separate the classes, not  including the gaps created by class limits.   Ex: Class Interval: 10­19; 20­30; 80­100                    Class Boundaries: 19+20/2 = 19.5  Class midpoints: the values in the middle of the classes  o Class midpoint is found by adding the lower limit to the supper class  limit and dividing it by 2   Ex: Class Interval: 10­14; 24­28; 32­36                     Class Boundaries: 12, 26, and 34  Class width: the difference between two same lower class limit                    o Calculate class width:          Class width = (maximum data value) – (minimum data value)                           Number of classes   Ex: Class Interval: 10­19; 20­29; 30­39                        Class Width: 10 


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