A partial relative frequency distribution is given.

Class	Relative Frequency
A	0.22
B	0.18
C	0.46
D

(a)

What is the relative frequency of class D?

(b)

The total sample size is 400. What is the frequency of class D?

(c)

Show the frequency distribution.

Class	Frequency
A
B
C
D

(d)

Show the percent frequency distribution.

Class	Percent Frequency (%)
A
B
C
D