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2 months ago

PLEASE HELP! By visual inspection, determine the best-fitting regression model for the data plot below.

Mathematics

2 answers:

tester [12.3K]2 months ago

8 0

A. Quadratic is correct regarding the apex

Svet_ta [12.7K]2 months ago

6 0

The initial step is to analyze the graph's behavior.
It doesn’t follow a linear pattern, as the rate of change is inconsistent.
It also isn’t exponential since the change rate doesn't fluctuate significantly.
For this scenario, the most suitable regression model would be of the type:
$y = ax ^ 2 + bx + c
$
Where,
a <0: This indicates that the parabola opens downwards.
Hence, the most appropriate regression model is quadratic.
Answer:
From visual analysis, the most fitting regression model for the data observed is:
A. Quadratic

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We are provided with the following in the question:

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Median equal to

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d) change score that is 2.2 standard deviations lower than the mean.

$x = \mu - 2.2(\sigma)\\x = 1.92-2.2(3.25)\\x = -5.23$

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