A multiple-choice test consists of 9 questions. Each question has answer choices of a, b, c, d, and e, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that he gets at least 2 of them correct? Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. (If necessary, consult a list of formulas.)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
100%
**Probability in Multiple-Choice Tests**

*Problem Statement:*

A multiple-choice test consists of 9 questions. Each question has answer choices of \(a, b, c, d,\) and \(e\), and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that he gets at least 2 of them correct?

*Instructions:*

Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. 

(If necessary, consult a list of formulas.)

---

*Visual Aids and Interactions:*

Below the text, there are interactive input fields for submitting answers or calculations. One button likely contains options to confirm or reset the input.
Transcribed Image Text:**Probability in Multiple-Choice Tests** *Problem Statement:* A multiple-choice test consists of 9 questions. Each question has answer choices of \(a, b, c, d,\) and \(e\), and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that he gets at least 2 of them correct? *Instructions:* Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places. (If necessary, consult a list of formulas.) --- *Visual Aids and Interactions:* Below the text, there are interactive input fields for submitting answers or calculations. One button likely contains options to confirm or reset the input.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON