Question

Use normal approximation to estimate the probability of passing a true/false test of 30 questions if...

Use normal approximation to estimate the probability of passing a true/false test of 30 questions if the minimum passing grade is 90% and all responses are random guesses.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

90% of 30 questions = 27 questions

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
Use normal approximation (without continuity correction) to estimate the probability of passing a true/false test of...
Use normal approximation (without continuity correction) to estimate the probability of passing a true/false test of 30 questions if the minimum passing grade is 60% and all responses are random guesses.
Use normal approximation (without continuity correction) to estimate the probability of passing a true/false test of...
Use normal approximation (without continuity correction) to estimate the probability of passing a true/false test of 20 questions if the minimum passing grade is 60% and all responses are random guesses.
Use the Normal Approximation to the Binomial Distribution to compute the probability of passing a true/false...
Use the Normal Approximation to the Binomial Distribution to compute the probability of passing a true/false test of 40 questions if the minimum passing grade is 60% and all responses are random guesses.
Zoe is taking a test with 100 questions. There are 30 True/False questions and 70 multiply-choices...
Zoe is taking a test with 100 questions. There are 30 True/False questions and 70 multiply-choices questions (4 choices per question). Suppose that she blindly guesses all the questions and the results of the different questions are independent. Approximate the probability that (a) she answers at least 40 questions correctly. (b) she gets more correct answers on True/False questions than she does on multiplychoices questions.
9. There are 50 true-or-false questions on an exam. For each question there is only one...
9. There are 50 true-or-false questions on an exam. For each question there is only one correct answer. If you need to get at least 65% of the questions correct to pass the test, what is the probability of passing this test by making random guesses? 10. Referring to the previous problem, find the mean (expected value) and variance for the number of questions you answer correctly by making random guess.
A test consists of 5 true/false questions. To pass the test a student must answer at...
A test consists of 5 true/false questions. To pass the test a student must answer at least 4 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test?
A student takes an 8-question, true-false exam and guesses on each question. Find the probability of...
A student takes an 8-question, true-false exam and guesses on each question. Find the probability of passing if the lowest passing grade is 6 correct out of 8. a. 0.109 b. 0.227 c. 0.144 d. 0.164
A quiz consists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes...
A quiz consists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 70 %.
A quiz consists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes...
A quiz consists of 20 multiple-choice questions, each with 6 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 60 %. ?(pass)=
a quick quiz consists of true/false questions followed by a multiple choice question with four possible...
a quick quiz consists of true/false questions followed by a multiple choice question with four possible answers (a,b,c,d). If both questions are answered with random guesses: a.)are these two types of questions independent? yes or no b.) find the probability that both responses are correct
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT