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

---

Definitions:

Private Property

Land or belongings owned by individuals or corporations and not by the government or public entities.

Trespass to Land

The entry onto, above, or below the surface of land owned by another without the owner’s permission.

Lawful Possession

The legal right to have or control an item or property, sanctioned by law.

Unauthorized Entry

The act of entering a property or system without permission or legal right, often considered a breach or trespass.