russell surveyed 16 students at his school and found that 4 of them planned to take orchestra as their next…

russell surveyed 16 students at his school and found that 4 of them planned to take orchestra as their next elective. if russell surveys 12 more students, how many of them are probably planning on taking orchestra as an elective, based on past data? students

russell surveyed 16 students at his school and found that 4 of them planned to take orchestra as their next elective. if russell surveys 12 more students, how many of them are probably planning on taking orchestra as an elective, based on past data? students

Answer

Answer:

3

Explanation:

Step1: Calculate the proportion

The proportion of students planning to take orchestra in the first - survey is $\frac{4}{16}=\frac{1}{4}$.

Step2: Apply the proportion

If 12 more students are surveyed, the number of students probably planning to take orchestra is $12\times\frac{1}{4} = 3$.