In an objective exam which has 3 answer options each for all the 20 questions, what is the probability that Samir answers 9 questions incorrectly?
Answers
Answered by
6
Answer:
Yes 18 is the answer bro
Step-by-step explanation:
Kindly Mark Me As Brainiest bro
Answered by
0
Answer:
Step-by-step explanation:
Probability of correct guess =
Probability of wrong guess =
Probability that 4 answers are guessed correctly =
Probability that 5 answers are guessed correctly =
Thus, that the student solves 4 or more questions correctly just by guessing =
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