Over the Past 30 Years,the Sample Standard Deviations of the Rates

question 55

Multiple Choice

Over the past 30 years,the sample standard deviations of the rates of return for stock X and sStock Y were 0.20 and 0.12,respectively.The sample covariance between the returns of X and Y is 0.0096.The correlation of the rates of return between X and Y is the closest to ____.

• A) 0.20
• B) 0.24
• C) 0.36
• D) 0.40

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Definitions:

Anticipatory Guidance

A proactive, preventive approach in healthcare that focuses on providing patients (or caregivers) with information and advice on the expected growth, developmental milestones, and health issues in an effort to prevent health and safety problems.

Physical Development

The changes in size, shape, and function of the body during growth and aging.

Early Intervention

The provision of support and services for infants and young children who have developmental delays or specific health conditions, aiming to improve long-term outcomes.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21.