Answer:
Correct statement: (a) and (b).
Step-by-step explanation:
R-squared is a statistical quantity that measures, just how near the values are to the fitted regression line. It is also known as the coefficient of determination.
The coefficient of determination is the squared value of the correlation coefficient.
That is,
The correlation coefficient between two variables is the measure of the strength and direction of the relationship between two variables.
Its values ranges from -1.00 to +1.00.
Although <em>r</em> can be negative but R² is always positive, since square of a negative number is also positive.
So the correct statements are:
a. cannot be negative
b. is the square root of the coefficient of correlation
Answer:13n=200
Step-by-step explanation$13 for pood per person. n is the number of people. 13 times n equals 200
From the given condition above, travelling from the northernmost part to the southernmost part would mean that the cars traveled half of the circumference of the circle. With the given value for the circumference of the circular track, the car traveled 1.35 km.
Answer: B area of PQRS is 16 square units