00326nam a22001217a 4500008004100000020001500041050002800056100001800084245005200102260002500154300001000179650001500189210617b        xxu||||| |||| 00| 0 eng d  a8171419534  aQA276.12b.S53 2005 c.1  aSharma, A. K.  aTextbook of elementary statistics cA.K. Sharma  aNew DhelibDPHc2005  a312p.  aStatistics