Question

ann runs a day care center. of the last 18 children to enroll at the day care center, 8 of them have been elementary school students. considering this data, how many of the next 9 children to enroll should you expect to be elementary school students? elementary school students

Explanation:

Step1: Calculate the proportion

Find the proportion of elementary - school students among the last 18 children. The proportion $p=\frac{8}{18}=\frac{4}{9}$.

Step2: Predict the number

Use the proportion to predict the number of elementary - school students among the next 9 children. Let $x$ be the number of elementary - school students among the next 9 children. We know that $p=\frac{x}{9}$. Substitute $p = \frac{4}{9}$ into the equation: $\frac{4}{9}=\frac{x}{9}$, so $x = 4$.

Answer:

4