In a Study of the Factors That Affect Success in Economics

question 114

Multiple Choice

In a study of the factors that affect success in economics, data were collected for 8 business students. Scores on a calculus placement test are given with economics final exam scores. The data are below: It can be shown that for these data: = 17.75, = 70.38, = 237.50, = 545.875, ( − ) = 140.75.
Calculate the sample covariance.

• A) 140.75
• B) 77.98
• C) 33.93
• D) 20.11
• E) 17.59

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Definitions:

Collaborative Forecast

A forecast made using input from multiple stakeholders, such as suppliers, customers, and partners, to improve accuracy and planning.

Supply Chains

The entire network of entities involved, directly or indirectly, in serving a customer with a product or service.

Responsive

The ability to quickly and accurately react to changes or inputs, often used in the context of web design or customer service.

Efficient

Achieving maximum productivity with minimum wasted effort or expense, often related to the optimal use of resources.