Before you begin searching for information, you should thoroughly understand the topic you are researching. General science dictionaries, subject dictionaries, and encyclopaedias are a good place to begin. Dictionaries provide definitions of unfamiliar terms, while encyclopedias give explanations and succinct overviews of topics.
Encyclopedia of measurement and statistics by 
Encyclopedia of statistical sciences by 
The Cambridge dictionary of statistics. 4th ed. by 
Reference books, including dictionaries and encyclopaedias, are on the low shelves near the Information Desk on Level 4.
They may not be borrowed. Some are also available electronically.
New Cambridge statistical tables by 
Handbook of computational statistics by