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In Module 8, we discussed the correlation coefficient of two random variables, say X and Y....

In Module 8, we discussed the correlation coefficient of two random variables, say X and Y. Suppose X is the head circumference of a person, and Y is the person's IQ score. If the correlation coefficient is found to be 0.7943, please interpret this with a brief statement. Use your own words!

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Answer #1

The correlation coefficient of two random variables, say X and Y. Suppose X is the head circumference of a person, and Y is the person's IQ score. If the correlation coefficient is found to be 0.7943

Interpretation:

1. The correlation is positive, that is the head circumference of a person and his IQ are positively correlated.

If one has the larger head circumference has the higher IQ

2. The value is quite high for the two variables

Higher the value stronger the correlation

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