Question

look at the table on texts assigned to students. which value for a completes the conditional relative frequency table by row?
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: Use row - total property

In a conditional relative frequency table by row, the sum of the relative frequencies in each row is \(1.0\).
For the "Non - Fiction" row, let the relative frequency of "Poetry" be \(a\). We know that \(a + 0.9=1.0\).

Step2: Solve for \(a\)

Subtract \(0.9\) from both sides of the equation \(a + 0.9 = 1.0\).

$$a=1.0 - 0.9$$

$$a = 0.1$$

Answer:

\(0.1\) (corresponding to the third option)