What is the first step you should take if you need to find the correlation coefficient for this graph without using a computeriz
ed tool?
A ) Construct the estimated regression line.
B ) Calculate the residuals.
C ) Calculate the mean of the residuals.
D ) Find the difference between each y-value and the predicted value.
please answer correctly
A ) Construct the estimated regression line.
B ) Calculate the residuals.
C ) Calculate the mean of the residuals.
D ) Find the difference between each y-value and the predicted value.
please answer correctly
2 answers:
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Given:
The zeros of the polynomial are .
Degree = 4
Leading coefficient = 1
To find:
The polynomial.
Solution:
If c is a zero of a polynomial, then (x-c) must be a factor of the polynomial.
Here, -2,4,-5, 5, are zeros of the required polynomial, so (x+2), (x-4), (x+5), (x-5) are factors of required polynomial.
Using distributive property, we get
On combining like terms, we get
Here, the leading coefficient is 1. So, it is the required polynomial.
Therefore, the correct option is E.