Identify the true statements about the correlation coefficient, if two variables are negatively correlated, when one variable increases, the other variable also increases. the correlation coefficient is not affected by outliers. a correlation coefficient of zero means that no relationship exists between the two variables. the sign of describes the direction of the association between two variables. when the data points in a scatter plot are randomly scattered, the correlation between the two variables is weak. the value of ranges from negative one to positive one.

Step-by-step explanation:

Correlation coefficient is the measure of linear association between two variables.  It is the ratio of cov of two variables divided by product of std deviation of each variable.  If outliers are present std deviation would be more and hence affects the correlation value very much. The correlation coefficient ranges between -1 and 1.  If negative we say negative association and vice versa.

Hence the correct true statements are

A correlation coefficient of zero means that no relationship exists between the two variables.

The sign of  corr.coeff. describes the direction of the association between two variables

When the data points in a scatter plot are randomly scattered, the correlation between the two variables is weak.

The value of corr.coeff ranges from negative one to positive one.

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it