Question

There are 540 students in Marla’s school. In her classroom, there are 2 left-handed students and 18 right-handed students. Predict the number of left-handed students in the whole school.

Answer 1

To predict the number of left-handed students in Marla's school, we can first determine the proportion of left-handed students in her classroom and then apply that proportion to the total number of students in the school.

In her classroom, there are:
- 2 left-handed students
- 18 right-handed students

The total number of students in her classroom is:
\[
2 + 18 = 20
\]

Now, we find the proportion of left-handed students in her classroom:
\[
\text{Proportion of left-handed students} = \frac{2}{20} = \frac{1}{10}
\]

Now, to find the predicted number of left-handed students in the whole school, we multiply this proportion by the total number of students in the school:
\[
\text{Predicted number of left-handed students in school} = \frac{1}{10} \times 540 = 54
\]

Therefore, the predicted number of left-handed students in the whole school is **54**.