Question

Answer correclty

Answer 1

Answer:

2. B) The events have a strong positive linear correlation.

1. C) Find the slope using the slope formula:

$\frac{y_2 - y_1}{x_2 - x_1}$

Step-by-step explanation:

2. The correlation coefficient is 0,02, which is positive, so this would be the obvious choice.

1. You CANNOT write a linear equation without FIRST finding the rate of change [slope]. You will ALWAYS need the rate of change in order to write any linear equation.

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Answer 2

Answer:

1) C

2) B

Step-by-step explanation:

Solution:-

Q1)

- The first step to write an equation of line in slope-intercept form is to determine the slope of the line from a line connecting the points ( -1 , 0 ) and ( -2 , -2 ). using the formula:

                                   m = ( y2 - y1 ) / ( x2 - x1 )

Where, m = slope

            The points are:

                                     ( x1 , y1 ) = ( -1 , 0 )

                                     ( x2 , y2 ) = ( -2 , -2 )

- So the correct answer is option C.

Q2)            

- The given correlation coefficient r is given to be 0.02. The correlation between variables x and y exist because r ≠ 0, this rules out option D.

- The positive or negative correlationship is given by the sign of the correlation coefficient. Since, r = 0.02 then r > 0. So we can conclude its a strong positive linear correlation, So option B is correct.