Question

A scatter plot was created to show the relationship between the number of staff members and students at various schools. The scatter plot's trend line has an equation of y = 0.1x + 18, where y is the total number of staff members and x is the total number of students.



Use the equation to predict the number of students in a school with 120 staff members.


890 students


1,038 students


30 students


1,020 students

Answers

GPT 3.5
To predict the number of students in a school with 120 staff members, we can plug x=120 into the equation y = 0.1x + 18.

y = 0.1(120) + 18
y = 12 +18
y = 30

Therefore, the predicted number of students in a school with 120 staff members is 30.

So, the correct answer is 30 students.

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