Willemse, Isabel <br/><br/>
Statistical methods and calculation skills / 
Isabel Willemse 
 - 3rd ed. 
 - Lansdowne, Cape Town :  Juta,  2009 
 - vii, 272 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>9780702177538  RM230.52 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics--Problems, exercises, etc.<br/>Mathematical statistics--Problems, exercises, etc.<br/>Commercial statistics--Problems, exercises, etc.