Find the upper limit of the first class interval in class interval: 8-11, 12-15, 16-19...

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Solution

We have class intervals : 8 - 11 , 12 - 15 , 16 - 19 , . . .

We for that class interval continuous and get

7.5 - 11.5 , 11.5 - 15.5 , 15.5 - 19.5 , . . .

First class - interval is : 7.5 - 11.5 , So

The upper limit of the interval (7.5 - 11.5 ) is 11.5 ( Ans ).

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(a) the upper class limit of a class is excluded in the class interval

(b) the upper class limit of a class is included in the class interval

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Find the upper limit of the first class interval in class interval: 8-11, 12-15, 16-19...

We have class intervals : 8 - 11 , 12 - 15 , 16 - 19 , . . . We for that class interval continuous and get 7.5 - 11.5 , 11.5 - 15.5 , 15.5 - 19.5 , . . . First class - interval is : 7.5 - 11.5 , So The upper limit of the interval (7.5 - 11.5 ) is 11.5 ( Ans ).

We have class intervals : 8 - 11 , 12 - 15 , 16 - 19 , . . .

We for that class interval continuous and get

7.5 - 11.5 , 11.5 - 15.5 , 15.5 - 19.5 , . . .

First class - interval is : 7.5 - 11.5 , So

The upper limit of the interval (7.5 - 11.5 ) is 11.5 ( Ans ).