Math 1070 Frequency of Distribution
Math 1070 Frequency of Distribution Math 1070
Popular in Elementary Statistics
Popular in Statistics
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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