Market researchers were interested in the relationship between the number of pieces in a building-brick set and the cost of the set. The researchers collected information from a survey and used it to obtain the regression equation widehat y is equal to 0 point 0 8 x plus 1 point 2 0 , where x represents the number of pieces in a set and widehat y is the predicted price (in dollars) of the set. What is the predicted price of a set that has 2 comma 520 pieces?
A
2 dollars comma 017 point 2 0B
3 dollars comma 024 point 0 8Substitute 2,520 for x in the regression equation: 0.08 × 2,520 + 1.20 = 201.60 + 1.20 = 202.80. The predicted price is $202.80, which is choice A.
AI-written and checked against the verified answer.