Question

write the class size and class limit of 104,114,,124,134?

Answer 1

Solution :

Given class mark or mid values

( xi ):104,114,124,134

i ) Class size (h)

= Difference between any

two consecutive class marks

= 114 - 104

= 10

ii ) Class limits =

( xi - h/2 , xi + h/2 )

First class limits :

( 104 - 10/2 , 104 + 10/2 )

= ( 104 - 5 , 104 + 5 )

= ( 99 , 109 )

Therefore ,

class size ( h ) = 10,

Class limits :

99 - 109

109 - 119

119 - 129

129 - 139

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