The Following Data, Compiled by the Superintendent of Schools in a Large

question 57

Multiple Choice

The following data, compiled by the superintendent of schools in a large metropolitan area, shows the average SAT verbal scores of high school seniors during the 5 years since the district implemented its "back-to-basics" program. Determine the equation of the least-squares line for these data.Use the result obtained to predict the average SAT verbal score of high school seniors 2 years from now (x = 7) .Please round your answer to the nearest whole number.

• A)y = - 2.9x + 450; 426
• B)y = - 2.9x + 450; 416
• C)y = - 2.8x + 440; 420
• D)y = - 2.8x + 440; 422

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