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RoseWind [281]
3 years ago
5

The data set represents a month-to-month progression of gasoline prices over the course of several months in an unspecified city

. Use a graphing calculator to determine the quadratic regression equation for this data set.

Mathematics
1 answer:
mash [69]3 years ago
4 0

Answer:

The correct option is a.

Step-by-step explanation:

The general form of a quadratic regression equation is

y=ax^2+bx+c                         ..... (1)

Using graphing calculator we get

a=-0.143393\approx -0.143

b=0.59525\approx 0.595

c=2.82964\approx 2.830

Substitute these values in equation (1) to find the quadratic regression equation for this data set.

y=-0.143x^2+0.595x+2.830

Therefore the correct option is a.

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