At Eastern University,60% of the Students Are from Suburban Areas,30

question 60

Multiple Choice

At Eastern University,60% of the students are from suburban areas,30% are from rural areas,and 10% are from urban areas.Of the students from the suburban areas,60% are nonbusiness majors.Of the students from the rural areas,70% are nonbusiness majors.Of the students from the urban areas,90% are nonbusiness majors.The probability that a randomly selected student is a business major is

• A)0.66
• B)0.54
• C)0.44
• D)0.34

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Definitions:

Marsupial

A class of mammals, primarily found in Australia and the Americas, characterized by giving birth to relatively undeveloped offspring that typically complete their development in a pouch.

Echinoderms

A phylum of marine animals including sea stars, sea urchins, and sand dollars, known for their radial symmetry and a water vascular system.

Chordates

Animals that at some stage of development have a notochord, a dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail, comprising all vertebrates and several closely related invertebrates.

Exoskeleton

A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.