TABLE 7.

Colour vs central nucleus diameter

Colour	No of Pts	Mean diameter	S.D.
White	145	6.01	0.47
Yellow	159	6.45	0.49
Brown	117	6.89	0.38
Black	8	7.24	0.44

Analysis of variation
Variation	S.S.	DF	MS	F Statistic	P Value
Between	56.20	3	18.73	103.66	< 0.001
Within	76.80	425	0.181
Total	133.01	428