Find the coefficient of determination. X Y 7 11 12 15 14 20 18 26 a) 0.957 B) 0.941 NS) 0.978 D) 0.926 TO) 0.913
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
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Find the coefficient of determination. X Y 7 11 12 15 14 20 18 26
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Correlation:
It tells how the variables are linearly related with each other. It represents the direction of the linear relationship between two or more variables. Its value lies between -1 and 1.
There are mainly three types of correlation:
Positive correlation (0,1)
Negative correlation (-1,0)
No correlation (0)
Correlation does not mean causation, i.e., correlation does not imply that a change in one variable is caused by a change in another variable, keeping other factors constant.
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