Question

Use a graphing calculator or other technology to answer the question.

Which quadratic regression equation best fits the data set?




yˆ=1568.064x2−115.264x+2.608

yˆ=2.608x2−115.264x+1568.064

yˆ=2.608x2+115.264x+1568.064

yˆ=2.608x2+112.909x+1568.064

x y
15 423
17 398
19 308
20 255
21 297
25 365
29 401

Answer 1

Answer:

yˆ=2.608x2−115.265x+1568.065

Step-by-step explanation:

I took the test.

Answer 2

The quadratic regression equation best fits the data set is 2.608x²  -155.264x + 1568.064 option second is correct.

What is the line of best fit?

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

Let's suppose the quadratic regression equation best fits the data set:

y = Ax² + Bx + C

From the data set, we can calculate the value of the A, B and C:

A = 2.608

B = -155.264

C = 1568.064

y = 2.608x²  -155.264x + 1568.064

Thus, the quadratic regression equation best fits the data set is 2.608x²  -155.264x + 1568.064 option second is correct.

Learn more about the line of best fit here:

brainly.com/question/14279419

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