ae asked. Pan A multiple ice qestions P ercentageofstuderts who udved part Agive
ID: 3144766 • Letter: A
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ae asked. Pan A multiple ice qestions P ercentageofstuderts who udved part Agiven In an exam, two parts of problem», 75% of student. 13, computations 85% ofstudents solved p-A, usenis solved bth parts A and B. Wht is the that they have already solved part 1B7 Problem2 On a library shelf, three statistics and live calculus books. Books are not replaced after someone borrowed it. If two books are taken, what is the probability that the first book is statistics and the second one is calculus? (Hint statistics and calculus books are independent.) Problem 4 A student is taking a 5 question True-False quiz but he has not been doing any work in the course and does not know the material so he randomly guesses at all the answers. a. What is the probability that he gets the first question right? b. What is the probability that he gets the first two questions right? (Hint: these questions are independent)Explanation / Answer
Dear Student Thank you for using Chegg !! Problem 2 Given % of students solving part A = 85% % of students solving part B = 75% % of students solving part A & part B = 15% % of students solving part A , given they already solved part B P (A) = 0.85 P(B) = 0.75 P(A &B) = 0.15 % of students solving part A , given they already solved part B Using conditional probability = P (A & B) / P (B) = 0.15/0.75 = 0.2 Solution Kindly note that as per chegg policy an expert can answer only 1 quuestion at a time. Thank you
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