Exhibit 10.1 the Following Questions Are Based on the Problem Description and Description

question 47

Multiple Choice

Exhibit 10.1
The following questions are based on the problem description and the output below.
A college admissions officer wants to evaluate graduate school applicants based on their GMAT scores, verbal and quantitative. Students are classified as either successful or not-successful in their graduate studies. The officer has data on 20 current students, ten of whom are doing very well (Group 1) and ten who are not (Group 2) . ​ ​ ​ ​
-Refer to Exhibit 10.1. What percentage of the observations is classified correctly?

• A) 90%
• B) 80%
• C) 85%
• D) 100%

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Definitions:

Mollusca

A diverse phylum of invertebrate animals with a soft body, which in many species is protected by a hard shell.

Barnacles

Marine crustaceans with hard protective shells, known for their sessile lifestyle attached to surfaces like rocks, ships, and whale skin.

Octopuses

Cephalopod mollusks known for their eight arms, high intelligence, and ability to change color and texture for camouflage.

Cephalopods

A class of mollusks that includes octopuses, squids, cuttlefish, and nautiluses, characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles.