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On a six-question multiple-choice test there are five possible answers for each
Chapter 2, Problem 2.4-3(choose chapter or problem)
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.
Questions & Answers
QUESTION:
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.
ANSWER:Step 1 of 3
Given:
The total number of questions are 6.
The possible answers to question is 5.
The correct option is represented by C.
The incorrect option is represented by I.