Correlation Tes...

The coefficient of correlation

Which of the following indicates the strongest relationship?

If the plotted points in the plane are spread all over the diagram, then there is

If two variables oppose each other then the correlation will be

Two variables are said to be positively correlated when with _____ in the value of one variable, the value of other variable also _____

If two variables are highly correlated, what do you know?

The Spearman correlation is used with

The nature of correlation for shoe size and IQ is _________

Calculate Pearson's correlation coefficient from the following data :

What is the range of simple correlation coefficient?

Correlation refers to

If the coefficient correlation exactly equals to -1 then it will be effect

Calculate Karl Pearson’s coefficient of correlation on the following data:

Following are the elements of correlation except

Examples of negative correlation are

If D2 = 0 rank correlation is

Following are the examples of positive correlation except

Coefficient of correlation is also known as product moment correlation.

If cov(x,y) = 0 then

If the plotted points in the plane form a band and they show a rising trend from the lower left hand corner to the upper right hand corner, then there is

Rearrange the following steps

a. Find the mean of two series x and y
b. Take deviation of the two series from their means.
c. Square the deviations and get the total
d. Multiply the deviations of x and y and get the total.
e. Substitute the values in the formula.

Options are as follows

Given that r = 0.42, cov(x,y) = 10.5, var(x) = 16; Find the standard deviation of y.

If the ratio of change between the two variables is a constant then there will be

If all the plotted points form a straight line from lower left hand corner to the upper right hand corner then there is

If with the fall in the value of one variable the value of another variable rises in the same proportion then it is said to be