Question

look at the table on texts assigned to students. which value for a completes the conditional relative frequency table by row? texts assigned to students poetry prose total fiction 0.2 0.8 1.0 non - fiction a 0.9 1.0 total 0.18 0.82 1.0 0.01 0.02 0.1 0.2

Explanation:

Step1: Recall the property of row - totals in a conditional relative frequency table

In a conditional relative frequency table by row, the sum of the relative frequencies in each row is 1.

Step2: Set up an equation for the non - fiction row

For the non - fiction row, we have $a + 0.9=1$.

Step3: Solve the equation for $a$

Subtract 0.9 from both sides of the equation: $a=1 - 0.9$.
$a = 0.1$

Answer:

0.1