. Find the class boundaries for each class. The upper class boundary of the firs

Question

. Find the class boundaries for each class. The upper class boundary of the first class and the lower class boundary of the second class are th of the next class. correspond to the value that is "in between" the upper class limit of one class and the lower Upper Class Boundary (31+32)2-31.5 (54+55)/2-54.5 Lower Class Boundary Class (31+32)2-31.5 (54+55)2-54.5 (77+78)/2-77.5 (100+101)2 100.5 101-123 9-31 32-54 55-77 78-100 77+78)/2-77.5 (100+101/2-100.5 Notice once again that the class boundaries are separated by an amount equal to the class wi this observation to complete the first lower class boundary and last upper class boundary Upper Class Boundary Lower Class Boundary Class 31·5-23-8.5 31.5 54.5 77.5 100.5 9-31 32-54 55-77 78-100 101-123 31.5 54.5 77.5 100.5 100.5+23-123.5

Explanation / Answer

When we calculate the class boundries both lowe and upper we actually want to know the minimum and maximum and minmum number that need to be included in the class.

In this example, for the first class lower class boundry is calculated as 31.5 - 23 = 8.8

Class Lower class boundry Upper class boundry 9-31 8.5 31.5 32 - 54 31.5 54.5 55 - 77 54.5 77.5 78 - 100 77.5 100.5 101 - 123 100.5 123.5

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