Question

⭐The class marks of a distribution are 105,115,125,135,145,155,165,175.

Determine the class size and class limits.⭐​

Answer 1

Step-by-step explanation:

Class Size = 115 - 105 = 10

We need classes of size 10 with class marks 105,115,125,135,145,155,165,175.

Thus,

class limits are 105 - (1/2) * 10 = 100 and 105 + (1/2) * 10 = 110

Therefore,

First class = 100 - 110

Second class = 115 - (1/2) * 10 and 115 + (1/2) * 10

                      = 110 and 120

Hence, Second class = 110 - 120

Third class = 120 - 130

Therefore,

class limits :

=> 110 - 110

=> 110 - 120

=>  120 - 130

=>  130 - 140

=> 140 - 150

=> 150 - 160

=> 160 - 170

=> 170 - 180.

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Answer 2

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