Tools 13) The number of vebiches pasdng theough a bank drtve-up ltne dustng each
ID: 3370968 • Letter: T
Question
Tools 13) The number of vebiches pasdng theough a bank drtve-up ltne dustng each 15-ute petod 13) wan mcorded. The nesults ae shown below Find the median number of wwhicle going thnough the line In a 15-minute pertod 2s 27 25 28 28 25 30 27 35 31 31 29 24 31 25 20 15 27 27 27 Adobe Exp Convert PD online Select PDFF MAT 12 A) 28 vehicles B) 31 vehicle 14) Scores on a teat harve a mean of 66 and a staland devlation of 9.Michelle has a scoce of 57 14) Convert To Conveet Michille's score to a z score Microsoft A)-9 B-1 C) 9 D) I 15) Rnd the Indicated geobabdlity Red the probabdilty that 3 randomly selected people all har 15) Recognize Te Change the same barthday Ignore leap years, Round to eight decimal places C) 0.00000731 A) 0 00000002 B) 03333 D) 00082 16) Rafer to the table whicdh wummarizes the recults of tecting for a cectaln dioease 16) Positive Test Negative Result Test Result Subject has the disease Subject does not have the disease Create PD Send Files Store Files 2 et ubject in randomlyselted and tected for the disease Wat is tdhe probabliry the subject has the disease given that the test reult ls negative. A) 0972 C)00% D) 0 028 17) Whuch ot the followting stabements lo not true? A) li the probablity od an ewet occurning o 1.5, then it s oestalin that event will ocu B) tu the probablity of an event ocurring is Q, chen it ls impossible for dhat event to occu C)EP Au0,then the Peeballity od the complement ofA?Explanation / Answer
13. Arrange the given data in ascending order. 15,20,24,25,25,25,25,27,27,27,27,27,28,28,29,30,31,31,31,35. This sample has 20 entries. So, median = (10th term+11th term)/2 = (27+27)/2 = 27.
14. Z-score = (x-mean)/standard deviation = (57-66)/9 = -9/9 = -1.
15. P(3 poeple have same birthday) = 365C1 * (1/365)*(1/365)*(1/365) = 0.00000751.
16. P(disease|negative) = P(disease and negative)/P(negative) = 9/(9+312) = 9/321 = 0.028