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1. (a) What type of statistical data is best represented by apie diagram? Illustrate your answer with Example.

(b) "Diagrams do.not add anything to.the meaning of statistics but when drawn and studied intelligently, they bring to view the salientcharacteristics qfgraphs and series.", Discuss the statement describing briefly the various types of diagrams.

25. (a) What is false base line? Under what conditions would its use be desirable?

(b) What conditions must generally be borne in mind while presenting statistical data?

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