Mathematics, 01.11.2019 02:31 ruchierosanp1n3qw
Astudent is taking an exam with 20 mcq questions, where each question has 4 choices and the student is randomly answering those questions (so p=0.25). use r code to answer the following questions: - calculate the probability of getting 1 questions correct? - calculate the probability of getting at least 5 questions correct? - calculate the probability of getting 15 questions correct? - calculate the probability of passing the exam (passing grade is 60%). - simulate a class of 100 students taking the same exam (where again each student is making random guesses). what is the average of the class (or the average of correct answers per student)? - if we increase the class size to 1000 students, what happens to the average? (keep in mind that the true average of the correct answers for any given number of students is simply p * n or 0.25 * 20 = 5 correct answers).
Answers: 1
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
Mathematics, 21.06.2019 21:30
Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m
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Mathematics, 21.06.2019 22:00
Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).
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Mathematics, 21.06.2019 23:50
Write the standard form of an equation with (see picture below)
Answers: 2
Astudent is taking an exam with 20 mcq questions, where each question has 4 choices and the student...
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