The Graduate Management Admission Test (GMAT) has four sections: analytical writ

Question

The Graduate Management Admission Test (GMAT) has four sections: analytical writing, integrated reasoning, quantitative and verbal sections. Suppose that a researcher collected GMAT score data and calculated the covariance matrix across sections.

Find the pair of two sections that have the largest correlation coefficient.

Analytical writing and integrated reasoning

Analytical writing and quantitative

Integrated reasoning and quantitative

Quantitative and verbal

Analytical writing and verbal

Analytical Writing Integrated Reasoning Quantitative Verbal Analytical Writing 0.81 Integrated Reasoning 0.108 1.44 Quantitative 1.08 2.88 16 Verbal 0.54 1.8 4.8 9

Explanation / Answer

Since quantitatve and verbal having highest covariance.

Hence covariance and correlations are directly proportionate

Hence Quantitative and verbal is haveing largest correllation coeff

Analytical Writing Integrated Reasoning Quantitative Verbal Analytical Writing 0.81 Integrated Reasoning 0.108 1.44 Quantitative 1.08 2.88 16 Verbal 0.54 1.8 4.8 9

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