RQ, Volúmenes13-14Reference and User Services Association, 1973 |
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Página 22
... asked during the year was 34,000 ( the aver- age of the sample , 100 × 340 days ) ± 1,530 questions ( the precision of the sample , ± 4.5 questions per day × 340 days ) . The formula for precision allows us to re- fine our statistics at ...
... asked during the year was 34,000 ( the aver- age of the sample , 100 × 340 days ) ± 1,530 questions ( the precision of the sample , ± 4.5 questions per day × 340 days ) . The formula for precision allows us to re- fine our statistics at ...
Página 44
... asked is a question not to be answered , " wrote Robert Southey in 1812. Our readers must have taken this phrase to heart , judging from the number of queries which have recently come to " The Exchange . " Indeed , we might take this ...
... asked is a question not to be answered , " wrote Robert Southey in 1812. Our readers must have taken this phrase to heart , judging from the number of queries which have recently come to " The Exchange . " Indeed , we might take this ...
Página 132
... asked to participate in the project . As the most prac- tical approach to compiling a comprehensive listing of names ... asked to give their opin- ions of the service at the end of that time . CHARACTERISTICS AND INTERESTS OF THE ...
... asked to participate in the project . As the most prac- tical approach to compiling a comprehensive listing of names ... asked to give their opin- ions of the service at the end of that time . CHARACTERISTICS AND INTERESTS OF THE ...
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