Bonus points will be give to the entire class if at least 7 of the 12...
Bonus points will be give to the entire class if at least 7 of the 12 questions are answered correctly. Assume that the probability that each question is answered correctly remains unchanged at 80%.
What is the probability the class gets bonus points? (use 4 decimals)
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Bonus points will be give to the entire class if at least 7 of
the 12...
Bonus points will be give to the entire class if at least 7 of the 12 questions are answered correctly. Assume that the...
Bonus points will be give to the entire class if at least 7 of the 12 questions are answered correctly. Assume that the probability that each question is answered correctly remains unchanged at 80%. What is the probability the class gets bonus points? (use 4 decimals)
Question 7 (4 points) A student takes a multiple choice test consisting of 5 questions where...
Question 7 (4 points) A student takes a multiple choice test consisting of 5 questions where there are 4 choices per question. Also, each question is worth 20 points. Suppose the student guesses on each question. Let X be the number of questions the student gets correct. The probability distribution for X is given below. Find the probability that the student gets at least a 60 on the test. Give your answer to four decimal places. x10 11 12 13...
Imagine, just imagine, I am in the mood to give away 7 extra credit points among...
Imagine, just imagine, I am in the mood to give away 7 extra credit points among my (only) 4 students. If all students have the same opportunity to get any of the points, what is the probability that each student gets at least one extra point?
Richard has been given a 12-question multiple-choice quiz in his history class. Each question has four...
Richard has been given a 12-question multiple-choice quiz in his
history class. Each question has four answers, of which only one is
correct. Since Richard has not attended the class recently, he
doesn’t know any of the answers. The success occurs if Richard
answers a question correctly and the failure occurs if Richard is
unable to answer a question correctly. Assuming that Richard
guesses on all 12 questions, find the probability that he will
answer no more than 3 questions...
QUESTION 12 2 points Save Answer In a baseball game, the probability that Peter gets on...
QUESTION 12 2 points Save Answer In a baseball game, the probability that Peter gets on base safely isIf he comes to bat four times, what is the probabilitv that he will get on base safely at least three times? * Use the equation editor to enter your answer as a fraction Pann p words:0 ▲ QUESTION 13 2 points Save Answer Determine the probability of landing on tails at most 33 times if you flip a fair coin 80...
4. (30 points) A statistics exam has five easy questions and three hard questions. You have...
4. (30 points) A statistics exam has five easy questions and three hard questions. You have six friends who are in the class, five are moderately prepared and one is very prepared. Probability Easy Questions Correct 80% Chance 95% Probability Hard Questions Correct 66.666% (two-thirds) 5 Moderately Prepared Friends 1 Very Prepared Friend 80% The probability of answering any one question correctly is completely independent of the probability of answering any other question correctly for every student. (a) What is...
A quiz in Microeconomics has 40 multiple answer questions and each of them has 4 possible...
A quiz in Microeconomics has 40 multiple answer questions and each of them has 4 possible answers, but only one of them is correct. For every correctly answered question a student gets 15 points and for every incorrectly answered she loses 5 points. What is the probability of passing the quiz (the minimum required is 120 points) if a student is randomly picking the answers? (hint: you may use a normal approximation)
Richard has been given a 7-question multiple-choice quiz in his history class. Each question has four...
Richard has been given a 7-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended the class recently, he doesn't know any of the answers. What is considered the success? Select one: a. number of questions answered b. Richard answers a question correctly. c. none of the choices d. number of questions e. Richard is unable to answer a question correctly.
< 1 2 3 5 6 7 8 9 10 11 12 13 > Question 4 of 13 (4 points) | Attempt 1 of 1 View question in a popup | Ở 24m 17s...
< 1 2 3 5 6 7 8 9 10 11 12 13 > Question 4 of 13 (4 points) | Attempt 1 of 1 View question in a popup | Ở 24m 17s Remaining 5.2 Section Exercise 27, 28ab (calc) Take a guess: A student takes a multiple-choice test that has 11 questions. Each question has five choices. The student guesses randomly at each answer. Let X be the number of questions answered correctly. (a) Find P (6). (b)...
4. Suppose that 75% of the students in a large class know how to answer a...
4. Suppose that 75% of the students in a large class know how to answer a particular test question correctly. You take a random sample of n = 5 student exams from the class. (a) What is the probability that none of the 5 students answered the test question correctly? (b) If the instructor gives no partial credit. 4 points for a correct answer and 0 points for an incorrect answer, i. What are the mean and standard deviation of...
Question 7 (4 points) A student takes a multiple choice test consisting of 5 questions where there are 4 choices per question. Also, each question is worth 20 points. Suppose the student guesses on each question. Let X be the number of questions the student gets correct. The probability distribution for X is given below. Find the probability that the student gets at least a 60 on the test. Give your answer to four decimal places. x10 11 12 13...
Richard has been given a 12-question multiple-choice quiz in his
history class. Each question has four answers, of which only one is
correct. Since Richard has not attended the class recently, he
doesn’t know any of the answers. The success occurs if Richard
answers a question correctly and the failure occurs if Richard is
unable to answer a question correctly. Assuming that Richard
guesses on all 12 questions, find the probability that he will
answer no more than 3 questions...
QUESTION 12 2 points Save Answer In a baseball game, the probability that Peter gets on base safely isIf he comes to bat four times, what is the probabilitv that he will get on base safely at least three times? * Use the equation editor to enter your answer as a fraction Pann p words:0 ▲ QUESTION 13 2 points Save Answer Determine the probability of landing on tails at most 33 times if you flip a fair coin 80...
4. (30 points) A statistics exam has five easy questions and three hard questions. You have six friends who are in the class, five are moderately prepared and one is very prepared. Probability Easy Questions Correct 80% Chance 95% Probability Hard Questions Correct 66.666% (two-thirds) 5 Moderately Prepared Friends 1 Very Prepared Friend 80% The probability of answering any one question correctly is completely independent of the probability of answering any other question correctly for every student. (a) What is...
< 1 2 3 5 6 7 8 9 10 11 12 13 > Question 4 of 13 (4 points) | Attempt 1 of 1 View question in a popup | Ở 24m 17s Remaining 5.2 Section Exercise 27, 28ab (calc) Take a guess: A student takes a multiple-choice test that has 11 questions. Each question has five choices. The student guesses randomly at each answer. Let X be the number of questions answered correctly. (a) Find P (6). (b)...
4. Suppose that 75% of the students in a large class know how to answer a particular test question correctly. You take a random sample of n = 5 student exams from the class. (a) What is the probability that none of the 5 students answered the test question correctly? (b) If the instructor gives no partial credit. 4 points for a correct answer and 0 points for an incorrect answer, i. What are the mean and standard deviation of...
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