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Let's assume that there are 150 documents related to statistics in a library with 300 documents. When the user queries the term statistics, the search 

Let's assume that there are 150 documents related to statistics in a library with 300 documents. When the user queries the term "statistics", the search engine returns 50 documents, of which only 30 are statistics related documents. Calculate the search engine's Recall and Precison measures.

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