The histogram to the right represents the weights (in pounds) of members of a certain high-school debate team. What is the class width? What are the approximate lower and upper class limits of the first class? Frequency 105 115 125 135 145 155 165 175 Weight (ibs) What is the class width? The class width is (Simplify your answer.) What are the approximate lower and upper class limits of the first class? The approximate lower class limit is The approximate upper class limit is (Simplify your answers.)noint(s) possible Next question Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Monthly rainfall: 3.4 in, 3.5 in, 3.6 in, 3.7 in, and 3.8 in Choose the correct answer below. Ratio Ordinal Nominal IntervalAmong fatal plane crashes that occurred during the past 50 years, 481 were due to pilot error, 99 were due to other human error, 569 were due to weather, 386 were due to mechanical problems, and 256 were due to sabotage. Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it? Complete the relative frequency distribution below. Cause Relative Frequency Pilot error % Other human error Weather Mechanical problems Sabotage (Round to one decimal place as needed.) What is the most serious threat to aviation safety, and can anything be done about it? A. Mechanical problems are the most serious threat to aviation safety. New planes could be better engineered. @B. Weather is the most serious threat to aviation safety. Weather monitoring systems could be improved. OC. Sabotage is the most serious threat to aviation safety. Airport security could be increased D. Pilot error is the most serious threat to aviation safety. Pilots could be better trained