A Quiz Consists of 10 Multiple-Choice Questions with 5 Choices

question 103

Multiple Choice

A quiz consists of 10 multiple-choice questions with 5 choices for each question. Suppose a student is sure of the first 5 answers and has each of the last 5 questions narrowed to 3 of the possible 5 choices. If the student guesses among the narrowed choices on the last 5 questions, find the probability of getting at least a C (at least 70%) . Round your answer to four decimal places. ​

• A)Pr(Grade ≥ C) = 0.0412
• B)Pr(Grade ≥ C) = 0.4200
• C)Pr(Grade ≥ C) = 0.5391
• D)Pr(Grade ≥ C) = 0.4609
• E)Pr(Grade ≥ C) = 0.0163

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Definitions:

Lobes

Divisions of the brain defined by natural separation lines, each associated with different functions such as vision, hearing, and thought processing.

Academic Probation

A warning status given to students whose academic performance falls below an institution’s requirement for good standing.

Academic Fraternity

A student organization within higher education institutions, often focused on academic achievement and professional development, sometimes specific to particular fields of study.

Statistically

Pertaining to the use of or relating to statistics, which involves the collection, analysis, interpretation, and presentation of numerical data.