The frequencies of three class intervals 54 – 58, 59 – 63, 64 – 68 of a distribution arerespectively 4, 8 and 12. The frequency density of the 2nd class is

The frequencies of three class intervals 54 – 58, 59 – 63, 64 –

1.	The frequencies of three class intervals 54 – 58, 59 – 63, 64 – 68 of a distribution arerespectively 4, 8 and 12. The frequency density of the 2nd class is
A.	1
B.	1.2
C.	1.6
D.	2
Answer» E.