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this question gives you a list of numbers and asks
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you to find that the median the list, which
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is already in order, goes 27 35 39 42
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47 51 and 54. Now a median is the
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point in, essentially in the middle of your data
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, the median point is defined as the point where
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the amount of data that's greater than the median is
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the same as the amount that's less than the median
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. So we have a list that's already in order
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like this. It's pretty easy to find the media
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. We just need to know which one is in
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the middle. One way we can do that is
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we can just cross off the first and last as
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we dio and we'll eventually reach one or two and
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find that 42 is our median. But another way
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to do that in a way that it is a
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lot faster when you have bigger sets, is to
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figure out how many total data you have. You
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have here seven data points and you want to find
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what's going to be the middle of the first data
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point in the last data point. So you have
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one on one end. And yet 10.7 on the
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other end, and you want to find what's in
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the middle? Well, the midpoint of one in
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seven is gonna be one plus 7/2 or 8/2 or
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four. So it's gonna be your fourth data point
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. Is your medians at 123 four. Oh,
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your median here receives 42. And that's a formula
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that we, uh we can use a lot say
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, if we have n data points are median is
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the end plus one thing over tooth in the n
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plus one over to position. Um, so here
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are median is 42 and that is your final answer
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.