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7. Suppose a survey was conducted of the population of adults in Regina, in which participants were asked whether they have travelled out of Canada in the past 6 months, and if they have travelled outside of Saskatchewan in the last 6 months. The contingency table below summarizes the collected data. Notice the row, column, and grand totals are missing. In both parts of this question, show your work using appropriate notation. Do not round your answer. Travelled outside Canada Did not travel outside Canada Travelled outside 12,000 28,000 Saskatchewan Did not travel outside 24,000 32,000 Saskatchewan a. [2 marks] Calculate the sample proportion of adults in Regina who did not travel outside Canada, given they travelled outside of Saskatchewan. b. [2 marks] Calculate the sample proportion of adults in Regina who travelled outside of Canada