Question

A survey of Mrs. Ramirez's students showed that 30 students will have pizza for lunch, 17 will have macaroni and cheese, 12 will have a hamburger, and 5 will have chicken fingers. Suppose Mrs. Ramirez surveys all 1,200 students in the school. How many students can she expect to choose hamburgers for lunch?

Answer 1

Mrs. Ramirez can expect approximately 225 students to choose hamburgers for lunch.

Explanation:

To find out how many students Mrs. Ramirez can expect to choose hamburgers for lunch, we need to calculate the proportion of students who chose hamburgers from the given survey and then apply that proportion to the total number of students in the school.

From the survey:

Number of students choosing hamburgers = 12

Now, let's calculate the proportion of students choosing hamburgers from this survey:

Proportion of students choosing hamburgers:

12 / 30 + 17 + 12 + 5 = 0.1875

Next, let's apply this proportion to the total number of students in the school (1,200):

Expected number of students choosing hamburgers:

Proportion of students choosing hamburgers × Total number of students in the school

Expected number of students choosing hamburgers

(12 / 30 + 17 + 12 + 5) × 1200

Expected number of students choosing hamburgers ≈ 225