Plummer, H. C.  b. 1875 <br/><br/>
Probability and frequency / 
by H. C. Plummer 
 - London :  Macmillan,  1940 
 - xi, 277 p. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 15.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Probabilities<br/>Frequency curves<br/>Correlation (Statistics)