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The table given below shows a frequency ...

The table given below shows a frequency distribution table, find
(a) Upper limit of third class (b) Lower limit of fifth class
(c) Class size (d) Class mark of third class

Text Solution

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(a) Third class is 20-30
Its upper limit = 30
(b) Fifth class is 40-50
Its lower limit = 40
(c) Class size = 10-0= 20-10 = 30-20 = 40-30= 50-40= 60-50 = 10
(d) Third class is 20-30
` "Its class mark" = (20+30)/(2) = 25`
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