Question

Submit answers: Submit your answers for immediate grading Bookmark: Save this question set so that you can come back to it later 1 of 3 ID: MST.FET.P.CAP.01.0010A [2 marks] A group of 1000 people are surveyed and asked two shown in a contingency table here: stions; whether they own a computer and whether they use a computer at their workplace. The results are Use computer Own a computer at work Yes No Yes 559 No 121 123 147 Define the events A and B to be: • A randomly chosen person owns a computer • 8: a randomly chosen person uses a computer at work Geoff was studying this situation and went about calculating the probability of the union of A and B Geoff did this by counting up all of the different ways that A could occur, and then counting up all of the ways that could occur, He then added these two numbers together and divided by 1000 to find PA OF B). a) in doing this, Geoff will have over counted the proper number of outcomes by: 147 121 b) Calculate the probability of the union A Give your answer as a decima PO B) CH0482 Bowen M.pdf A Bloodborne Path docx A l oodbornpathog pdf 2020 Project M ode DOLL

Answer 1

sol for Given. A: a randomly chosen person own a Computer B! a randomly chosen person o ses a Computer at work probability is given by = favouable Mat Total Total = 559 +121 +147+ 173 = 1000 favorable = person owns a Computer (or) uses a Computer - 559+121 +599 flut we have over Counted 559 . so, the Answer is 999 Favourable = 559+12] +559 + 147-559 837 Total = 1000 probabiCty ts 8271000 = 0.83