The problem asks us to find the probability of selecting a boy from Mrs. Avery's class. There are 15 boys and 13 girls in the class. We need to round the answer to 2 decimal places if necessary.

1. Problem Description

The problem asks us to find the probability of selecting a boy from Mrs. Avery's class. There are 15 boys and 13 girls in the class. We need to round the answer to 2 decimal places if necessary.

2. Solution Steps

First, we need to find the total number of students in the class.

Total number of students = Number of boys + Number of girls

Total number of students = $15 + 13 = 28$

Next, we need to find the probability of selecting a boy.

Probability (P) = $\frac{Number \, of \, favorable \, outcomes}{Total \, number \, of \, possible \, outcomes}$

In this case, the favorable outcome is selecting a boy.

So, P(boy) = $\frac{Number \, of \, boys}{Total \, number \, of \, students}$

P(boy) = $\frac{15}{28}$

Now, we need to calculate the value and round it to two decimal places.

$\frac{15}{28} \approx 0.5357$

Rounding to two decimal places, we get $0.54$.

3. Final Answer

$0.54$