Elementary statistics : a step by step approach : a brief version 
Bluman, Allan G. 
 - 7th ed. 
 -  McGraw-Hill Education,  2015 
 - 1 v., [various pages] 
978-9-81315015-7
Mathematical statistics.
519.5 B6586 2015
                        978-9-81315015-7
Mathematical statistics.
519.5 B6586 2015