Question

An under prepared student is given a ten question, multiple choice, pop quiz that has four...

An under prepared student is given a ten question, multiple choice, pop quiz that has four choices (A,B,C,D). He guesses on every problem. Find the following.

(a) the average number of correct questions

(b) the standard deviation in correct questions

(c) the probability of getting half of the questions correct

(d) the probability of getting all incorrect

(e) the probability of getting at least one correct

(f) the probability of getting no more than two correct

(g) the probability of passing (70% or higher)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A pop quiz consists of three true–false questions and one multiple choice questions. Each multiple choice...
A pop quiz consists of three true–false questions and one multiple choice questions. Each multiple choice question has seven possible answers. If a student blindly guesses the answer to every question, what is the probability that the student will correctly answer all four questions? (Round your answer to 3 decimal places.) PROBABILITY: ?
A student takes a 19 question multiple choice quiz with 4 choices for each question. If...
A student takes a 19 question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student gets more than 2 questions correct?
Round to 4 decimals please A quiz has 12 multiple choice questions. Each question has 4...
Round to 4 decimals please A quiz has 12 multiple choice questions. Each question has 4 answer choices. If a student takes the quiz and randomly guesses on every question.. Question 1 Find the probability the student gets between 1 and 6, exclusive, questions correct? Question 2 Find the probability the student gets more than 8 questions correct?
A quiz consists of 100 multiple choice questions. Each question has 4 possible answers (A-D) and...
A quiz consists of 100 multiple choice questions. Each question has 4 possible answers (A-D) and only one answer is correct. If the student guesses the answer to the questions, then what is the probability earn a grade of 70% or higher? Show how to on Ti-84 Calculator
A student has just been given a 10-question multiple-choice quiz. Each question has five answers, of...
A student has just been given a 10-question multiple-choice quiz. Each question has five answers, of which only one is correct. The student has not attended class recently, and doesn't know any of the answers. Assume that guesses are made on all ten questions, find the indicated probability. (Round your answer to three decimal places.) What is the probability that the student will answer all questions incorrectly?
Jimmy has a quiz today that is multiple choice (a, b, c, or d) with ten...
Jimmy has a quiz today that is multiple choice (a, b, c, or d) with ten questions, but he did not study, so he decides to randomly mark answers on his scantron without reading the questions. a) Why should the number of questions Jimmy gets correct on the quiz follow a binomial distribution, to wit, what are the requirements to use a binomial distribution and how are they met in this scenario? b) List the parameters that define this distribution...
A problem on a multiple-choice quiz is answered correctly with probability 0.95 if a student is...
A problem on a multiple-choice quiz is answered correctly with probability 0.95 if a student is prepared. An unprepared student guesses between 5 possible answers, so the probability of choosing the right answer is 1/5. Seventy-five percent of students prepare for the quiz. If Mr. X gives a correct answer to this problem, what is the chance that he did not prepare for the quiz?
A problem on a multiple-choice quiz is answered correctly with probability 0.95 if a student is...
A problem on a multiple-choice quiz is answered correctly with probability 0.95 if a student is prepared. An unprepared student guesses between 5 possible answers, so the probability of choosing the right answer is 1/5. Seventy-five percent of students prepare for the quiz. If Mr. X gives a correct answer to this problem, what is the chance that he did not prepare for the quiz?
A short statistics quiz consists of two multiple choice questions. Each question had four possible answer...
A short statistics quiz consists of two multiple choice questions. Each question had four possible answer choices (A, B, C, and D). a. Make a list of the possible answer keys for the quiz or make a tree diagram for them. b. How many possible answer keys are there? c. If a student guesses at random for both questions, what is the probability they get both questions right? d. What is the probability that C was not the correct answer...
A quiz consists of 15 multiple-choice questions. Each question has 5 choices, with exactly one correct...
A quiz consists of 15 multiple-choice questions. Each question has 5 choices, with exactly one correct choice. A student, totally unprepared for the quiz, guesses on each of the 15 questions. a. How many questions should the student expect to answer correctly? b. What is the standard deviation of the number of questions answered correctly? c. If at least 7 questions must be answered correctly to pass the quiz, what is the chance the student passes?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT