1. A marine biologist recorded the number of deaths of specific fish species from the last 10 years (1 point)due to pollution in
a specific area off the Pacific coast. She was curious to see if there was atrend. Identify the best mathematical model with its corresponding R? value and tell whether itis a good model.
1 answer:
We have to see which model (quadratic or linear) best represents the data.
We can use software to fit this data set.
Linear model:
Quadratic model:
The quadratic model has a slightly better fit than the linear model.
But the value of R² = 0.176 shows that the fit is very weak, so we can conclude that this is not a good model for the data.
Answer:
Quadratic model, 0.176.
No, 0.176 is a very low R² value.
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