An investigation compiled information about recent nonmilitary plane crashes. The causes that could be determined are summarized in the table below. Cause Percent Pilot error 40% Other human error 5% Weather 6% Mechanical failure 14% Sabotage 6% If the investigators categorized 625 plane crashes, how many of the crashes were caused by mechanical failure? What percentage of the crashes were not determined? Use a spreadsheet (like Google Sheets or Excel) to make a relative frequency bar plot for these data. Be sure to include a bar for crashes whose cause was "Not Determined." A survey of autos parked at a large university classified the brands by region of origin, as seen in the table. origin of car student driver staff driver total American 107 105 212 European 33 12 45 Asian 55 47 102 total 195 164 359 What percent of the staff owned Asian cars? What percent of Asian cars were owned by staff? Use a spreadsheet (like Google Sheets or Excel) to make a stacked bar plot of the variables car origin and student/staff driver status. A random sample of registered voters nationally were asked whether they think it's better to raise taxes on the rich or raise taxes on the poor. The survey also collected information on the political party affiliation of the respondents. Here's a mosaic plot of the data. Based on the mosaic plot, Which political party's voters are least likely to support raising taxes on the rich? Which political party's voters are least likely to support raising taxes on the poor? Do views on raising taxes and political affiliation appear to be independent? Explain your reasoning