Suppose Jon is taking a test with 5 true-false questions and 5 multiple questions with 4...
Suppose Jon is taking a test with 5 true-false questions and 5 multiple questions with 4 choices each. He knows nothing so he will answer randomly
a) find the expected number of true-false questions he will answer correctly?
b) Find the probability that Jon answers exactly 7 questions correctly?
c) Find the expected number of total of questions he will answer correctly ?
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Suppose Jon is taking a test with 5 true-false questions and 5
multiple questions with 4...
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a....
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
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A true/false test has 30 questions. A passing grade is 70% or more correct answers. Answer_____(Type...
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7. In answering a question on a multiple-choice test, a student either knows the answer or...
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Suppose you take a test in which all the ten questions are true or false. Use a the random number generator in your calculator to randomly answer the question. A. Simulate the test using a random number generator and give all possible values for the random variable. B. Give the sequence of outcomes you use to answer the true false questions. C. How many true answers did you have? D. What ratio of true false you think you would have...
A short quiz has two true-false questions and one multiple-choice question with four possible answers. A...
A short quiz has two true-false questions and one multiple-choice question with four possible answers. A student guesses at each question. Assuming the choices are all equally likely and the questions are independent of each other, the following is the probability distribution of the number of answers guessed correctly. What is the Probability of getting less than all three right? X 0 1 2 3 P(X) .1875 .4375 .3125 .0625 Group of answer choices a) 1.0000 b) .9375 c) .6250 d) .3125
Question 18 3 points Save A In a multiple choice test there are 10 questions and each question is worth 3 marks. Each question has 5 choices, one of which is correct. Assume that Ahmed (who knows not...
Question 18 3 points Save A In a multiple choice test there are 10 questions and each question is worth 3 marks. Each question has 5 choices, one of which is correct. Assume that Ahmed (who knows nothing) guesses at each answer. If 90% and above is the A grade, determine the probability that he will get A grade. |3 MARKSI 0.1250654345 0.0000041984 0.0055124341 0.999995801
Question 18 3 points Save A In a multiple choice test there are 10 questions...
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
Mary's Final Exam for Psychology has 10 True/False questions and 10 multiple choice questions with 4 choices for each answer. Assuming Mary randomly guesses on every question: **Write answers using 3 decimal places* a.) What's the probability that she gets at least 8 of the 10 true/false questions correct? b.) What's the probability that she gets at least 6 of the 10 multiple choice questions correct? c.) If the multiple choice questions had 5 choices for answers instead of 4,...
Q5. Professor Paymon ran out of time while taking the multiple-choice final exam and he guessed the answers on the last 6 questions! Each question has 4 possible choices, one of which is correct. Let X be the number of answers he correctly guessed in the last 6 questions. What is the probability that he answered exactly 3 questions correctly in the last 6 questions? You may round your answer to the nearest hundredth. (Please show formulas and calculations)
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Question 18 3 points Save A In a multiple choice test there are 10 questions and each question is worth 3 marks. Each question has 5 choices, one of which is correct. Assume that Ahmed (who knows nothing) guesses at each answer. If 90% and above is the A grade, determine the probability that he will get A grade. |3 MARKSI 0.1250654345 0.0000041984 0.0055124341 0.999995801
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