Unit 3: Probability Assignment Booklet 3

12. The Canadian government is forming a committee on environmental regulation. If 45 legislators are
available to chose from with 30 being form urban areas and 15 being from rural areas. If 3 legislators are
chosen at random, determine the probability to the nearest hundredth, that at least one rural legislator
is chosen. Use the method stated below:

a. direct reasoning (2 marks)

b. indirect reasoning (2 marks)

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?