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Correlation

Question

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Can r lie outside -1 and 1 range depending on the type of data?

Solution

No, r cannot lie outside -1 and 1 range depending on the types of data. It lies between minus one and plus one. Symobtically.

-1 ≤ r ≥ 1

If in any exercise, r is outside this range it indicates error in calculation.

Some More Questions From Correlation Chapter

The range of simple correlation coefficient is:

If r_xy is positive the relation between X an Y is of the type:

If r_xy = 0 the variable X and Y are:

Of the following three measures which can measure any type of relationship:

If precisely measured data are available the simple correlation coefficient is:

Why is r preferrred to co-variance as a measure of association?

Can r lie outside -1 and 1 range depending on the type of data?

Does correlation imply causation?

When is rank correlation more precise than simple correlation coefficient?

Does zero correlation mean independenc?

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