Question

which could be a conditional relative frequency table?

first table:

	a	b	total
d	0.25	0.25	0.50
total	0.50	0.50	1.0

second table:

	a	b	total
d	0.35	0.65	1.0
total	0.30	0.70	1.0

third table (partial):

	a	b	total
d	0.25	0.75	0.50

Explanation:

Step1: Recall conditional frequency rules

A conditional relative frequency table has either:

1. Row totals equal to 1.0 (conditioning on row categories), or
2. Column totals equal to 1.0 (conditioning on column categories)

Step2: Analyze first table

Row totals = 0.50, column totals = 0.50. This is a joint relative frequency table, not conditional.

Step3: Analyze second table

Row totals for C and D are both 1.0. This fits the definition of a conditional relative frequency table (conditioning on rows C and D, showing relative frequencies of A/B within each row).

Step4: Analyze third table

Row totals = 0.50, column totals are not 1.0. This is not a conditional relative frequency table.

Answer:

The second table (with row totals of 1.0 for C and D):

	A	B	Total
D	0.35	0.65	1.0
Total	0.30	0.70	1.0