Test Index

Correlation and Regression

Question : 61 of 156

Marks: +1, -0

Karl Pearson's coefficient is defined from

Solution:

Concept:

Karl Pearson's coefficient of correlation can be applied to both ungrouped and grouped data.

Explanation:

For ungrouped data, the formula uses direct sums of

x

and

y

values.

For grouped data, the same concept is extended using frequency distributions and class midpoints.

Hence, it is defined for both types.

Answer:

Both.

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