Question

The class-mark of class interval
13-25 ​

Answer 1

Answer:

(ii) Class interval : Each group into which the raw data is condensed is called class interval . (iii) Class size: The difference between the true upper limit and the true lower limit of a class is called its class size. (iv) Class mark of a class: The class mark is given by (Upper limit+Lower limit2).

Step-by-step explanation:

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