Question

which could be a conditional relative frequency table?

Explanation:

Step1: Check row - total property

In a conditional relative - frequency table, row totals or column totals (depending on the conditioning) should sum to 1. In the first table, for rows C and D, $0.75 + 0.25=1$ and $0.25 + 0.75 = 1$. Also, column totals sum to 1.

Step2: Check second table

In the second table, for rows C and D, $0.25+0.25 = 0.5
eq1$.

Answer:

The first table could be a conditional relative - frequency table.