Which value for a completes the conditional relative frequency table by row?

The value of ''a'' for the given conditional frequency table by row is:

                           a=0.1

Step-by-step explanation:

Clearly from the given conditional relative frequency table by row we observe that each of the entries in a row were divided by the row total to obtain the corresponding conditional frequency.

Hence, the row sum of each of the row must be equal to 1.

For second row we must have:

           a+0.9=1.0

⇒        a=1-09.9

⇒       a=0.1  

Hence, the value of a is: 0.1

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5