In a frequency distribution table with 12 classes,the class-width is 2.5 and the lowest class boundary is 8.1,then what is the upper class boundary of the highest class?

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Solution

Upper class boundary of the highest class = Lower class boundary+(width×No.of classes)

=8.1+(2.5×12)
=8.1+30=38.1

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In a frequency distribution table with 12 classes,the class-width is 2.5 and the lowest class boundary is 8.1,then what is the upper class boundary of the highest class?

Upper class boundary of the highest class = Lower class boundary+(width×No.of classes) =8.1+(2.5×12) =8.1+30=38.1

Upper class boundary of the highest class = Lower class boundary+(width×No.of classes)

=8.1+(2.5×12)
=8.1+30=38.1