Asked by Amriajasmine
A quiz consists of 10 multiple-choice questions. Each question has 5 possible answers and only one of them is correct. A student has not studied for the quiz and will pick his answers randomly.
1)Define the random variable x that will be used for problem, and give the probability of “success” p.
I know n=10 x= correct answer 0;1;2;...10
2)What is the probability that the student will get none of the correct answers?
3) If 60% is the lowest passing score, what is the probability that the student will get a passing score?
1)Define the random variable x that will be used for problem, and give the probability of “success” p.
I know n=10 x= correct answer 0;1;2;...10
2)What is the probability that the student will get none of the correct answers?
3) If 60% is the lowest passing score, what is the probability that the student will get a passing score?
Answers
Answered by
kam
in one town 44% of all voters are democrats. if two voters are randomly selected for a survey, find the probability that they are both democrats. round to the nearest thousandth
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