A quiz has one multiple choice question with a answer choices A, Band C, and two true or
false questions. What is the probability answering all questions correctly by guessing?
Answers
Answer:
Explanation:
The prob. of obtaining the true- or false question correct is
1/2,
since there area unit 2 choices (true and false) and just one of them is correct.
The probabilty of obtaining the primary multiple alternative question correct is
1/4,
since there area unit four selections and just one correct answer.
The probabilty of obtaining the second multiple alternative question correct is additionally
1/4.
The probabilty of obtaining all of the queries correct (that is, obtaining the primary question correct and also the second question correct and also the third question correct) is
1/2, 1/4, 1/4, since and denotes multiplication.
1 /2, 1/4, 1/4 = 1/32
1/32 = 0.03125
= 3.125%
So, there is 3.125 % probability that you simply can get a one-hundred by guessing
Answer:
1/12
Step-by-step explanation:
probability of getting mcq answer correct = 1/3
probability of getting one true/false answer correct = 1/2
probability of getting all 3 answers correct = 1/3 * 1/2 *1/2
=1/12