THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 318

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A personnel officer for a firm that employs many part time salespeople tries out a sales aptitude test on several hundred applicants.Because the test is unproven,results are not used in hiring.Forty percent of applicants show high aptitude on the test and 12% of those hired both show high and achieve good sales records.The firm's experience shows that 30% of all salespeople achieve good sales.Let A be the event "shows high aptitude" and let B be the event "achieves good sales".
-Are A and B independent?

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Definitions:

Glucose

A primary sugar important for fueling biological processes in living organisms and forming part of many carbs.

Liver

A vital organ found in vertebrates that performs numerous functions, including detoxification, protein synthesis, and the production of biochemicals necessary for digestion.

Gallbladder

A small, pear-shaped organ located beneath the liver, storing and concentrating bile produced by the liver before releasing it into the small intestine.

Glycogen

A multi-branched polysaccharide of glucose that serves as a form of energy storage in animals, fungi, and bacteria.