We were asking about a particular person. Type of central tendency, an average a medianĪ statistical question. How old are the people? So this is where statistics So what answer do you give here? Do you give all of the ages? But we want to get a That they're not all going to be the same age. People will have watched this video in 2013, and Watched this video in 2013? Now this is interesting.
Is, how old are you? So we're talking about how Need statistics to answer this question or you Questions, and think about whether you think you Where we need statistics as statistical questions. For these reasons, question 8 can't be statistical. But then it would follow that the question "In general what base does the binary number system use?" would also be a statistical question (which it is not). Or perhaps there is some rule of thumb which says that any time you see the words "In General" or "On Average", it is automatically a statistical question regardless of the particulars of the question? Such a rule should be stated explicitly. If in all cases I would use less gas driving at 55 than at 70 mph, does this not mean that there is no variability in the outcomes and therefore this cannot be a statistical question? To put it a different way, because there will never be a time when I get into a car and say, "Hey! With this car and these road conditions I can save more gas driving at 70 than I would driving at 55", there is nothing to analyze.
Because I can only drive one automobile at any given time, all of the conditions of any given trip are constant regardless of the speed at which I drive and the only variable is my speed. Question 8 asks: "In general, will I use less gas driving at 55 than at 70 mph?" The instructor states that variability in road conditions and in automobiles mean this question is statistical, however the question asks if, in general, * I* will use less gas.
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