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Dewey's Principle:
Melvil Dewey's principle states: "The best reading for the largest number at the least cost" According to this principle a library should select, within the financial resources available, the best documents which may satisfy the information needs of the maximum number of readers. The term "best" is relative. It means a document which "may be the best in its own field, the best that will be read, the bet, of which good use will be made, the best that will answer certain demands". The best documents are those which satisfy the just demands of the users for recreation, knowledge and study; the documents which cater to the social and cultural needs of the users. A classic or a masterpiece may not be in demand for the time being, but it is the best book to be selected for its literary worth and for its use to the coming generations. The second part of Dewey's principle - for the largest numbers - refers to the users of the library and their information needs, specified or unspecified. Our selection of documents should be such as to satisfy as many readers as possible, the limitation of resources notwithstanding. This is possible when we know our readers and their reading needs.
The last part of the principle at the least cost - reminds us that the book budget of a library is never enough to meet all the information needs of the users. The concessional rates, acquisition of documents by gift and exchange, are some of the methods to save the limited funds for more purchases. The suggestion is that whatsoever is to be bought must be bought, but with an eye on strict economy. At the same time it should be seen that this economy does not result in the development of a poor book collection consisting of cheap books by incompetent authors. The principle expects us to be careful in our selection and economical in our purchases to ensure optimum satisfaction to the maximum number of our readers.
a. What do you mean by linear programming problem? Explain the steps involved in linear programming problem formulation? b. A paper mill produces two grades of paper viz., X and Y.
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#quesQuestion. a paper mill produces two grades of paper viz.,xand y.Bacause of raw material restrictions, it cannot produce more than 400 tones of grade x paper and 300 tons of g
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Type of Measures of Dispersion a. Absolute Measure: The measure of dispersion which is expressed in terms of the units of the observations( e, g, Rupees , metre ,
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
A paper mill products two grade of paper viz., X & Y. Because of raw material restriction, it cannot produce more than 400 tons of grade X paper & 300 tons of grade Y paper in a we
Disadvantage of standard Deviation It is not easy to understand and calculate. It gives more weight to the extremes and less to the items nearer to mean. Since
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