RQ, Volúmenes13-14Reference and User Services Association, 1973 |
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Página 321
... standard . But used carefully in conjunction with other tools , they can be of some assistance in this kind of search . Standard catalogs and basic lists offer fur- ther possibilities . The major ones are fairly re- cent and , in most ...
... standard . But used carefully in conjunction with other tools , they can be of some assistance in this kind of search . Standard catalogs and basic lists offer fur- ther possibilities . The major ones are fairly re- cent and , in most ...
Página 21
... standard deviation will be large , in the second case it will be small . Determining the standard deviation requires the use of daily reference question statistics from a previous year . The actual calculation of the standard deviation ...
... standard deviation will be large , in the second case it will be small . Determining the standard deviation requires the use of daily reference question statistics from a previous year . The actual calculation of the standard deviation ...
Página 22
... standard devia- tion and find that it is actually 18. We can show what effect this change will have on our statistics by using Formula 1 for sample size . Instead of our unknown in the formula being sample size , it will be the sample's ...
... standard devia- tion and find that it is actually 18. We can show what effect this change will have on our statistics by using Formula 1 for sample size . Instead of our unknown in the formula being sample size , it will be the sample's ...
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