Answer:
R-squared is a statistical measure of how close the data are to the fitted regression line.
Step-by-step explanation:
It is also known as the coefficient of determination, or the coefficient of multiple determination for multiple regression. ... 100% indicates that the model explains all the variability of the response data around its mean.
Answer:


Step-by-step explanation:
Let the length of the rectangle be 'L'
And the width of the rectangle be 'W'

According to the statement:

Perimeter of a rectangle= 2(Length+Width)



Answer:
1.25x10^2
Step-by-step explanation:
5x5^2
5x5x5=125
125=1.25x10^2
Therefore 5x5^2=1.25x10^2