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:

Non-response

The phenomenon where survey participants choose not to or fail to answer certain questions, affecting the accuracy and completeness of data collected.

Survey

A research method used for collecting data from a predefined group of respondents to gain information and insights on various topics of interest.

Television Sets

Electronic devices designed to receive broadcast signals and display them as moving images and sound.

Legal Status

Refers to the position of an individual or entity in the eyes of the law, determining their rights, responsibilities, and legal capacity.