Question

Monthly private school tuition based on the average number of weeks in attendance is predicted using the least-square regression line, ŷ = 265.9 + 93.4x, where ŷ represents the predicted monthly expense and x represents the average number of weeks in attendance. A child attends private school an average of 3.5 weeks and has a monthly cost of $595. What is the residual for the child?
A.) −2.2
B.) 2.2
C.) 3.52
D.) −3.52
E.) 90.7

Answer 1

Answer:

2.2

Step-by-step explanation:

Substitute 3.5 into the equation for x and simplify the right side to get 592.8. 595 is 2.2 greater than 592.8.