2.4-3.On a six-question multiple-choice test there are five possible answers for each question, of which one is correct (C) and four are incorrect (I). If a student guesses randomly and independently, find the probability of a. Being correct only on questions 1 and 4 (i.e., scoring C, I, I, C, I, I). b. Being correct on two questions.
2.4-3.On a six-question multiple-choice test there are five possible answers for each question, of which one is correct (C) and four are incorrect (I). If a student guesses randomly and independently, find the probability of a. Being correct only on questions 1 and 4 (i.e., scoring C, I, I, C, I, I). b. Being correct on two questions.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Hello Can you please help me with this problem because i don't understand how to do this problem and the parts that go along with it can you please do it step by step and can you label the parts too.
Transcribed Image Text:**Problem 2.4-3:**
Consider a six-question multiple-choice test where each question has five possible answers. Among these, one answer is correct (denoted as C) and four are incorrect (denoted as I). If a student makes random and independent guesses, determine the probability for the following scenarios:
a. The student answers correctly only on questions 1 and 4 (i.e., the answer pattern is C, I, I, C, I, I).
b. The student answers correctly on exactly two questions.
Expert Solution
Step 1: Determine the given variables.
The question is about discrete probability distribution.
Given :
No. of multiple choice questions in a test ( n ) = 6
No. of possible answers for each questions = 5
To find :
a ) Probability of being correct only on question 1 and 4.
b ) Probability of correct on two questions.
Step by step
Solved in 5 steps with 6 images
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