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Calculate Measures of Central Tendency for a Data Set Manually 862 Views
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Description:
Today's video is about calculating central tendency. We'll lay out outliers and make means... mean ingful.
Today's video is about calculating central tendency. We'll lay out outliers and make means... mean ingful.
Transcript
- 00:03
calculating measures of central tendency for a data set manually a la shmoop [Little girl looking at math work]
- 00:09
all right well say you've got a bunch of data and you want to make sense of it
- 00:12
all not a bad way to handle data well chances are you've got a bunch of
- 00:16
numbers ranging from some high point to some low point and you want to know what
- 00:20
those numbers mean get it what's the best way to get a handle on it well you [Boy looking for books]
Full Transcript
- 00:25
have a couple of options well first you can take the mean or
- 00:28
average of those numbers yeah second ways to find the median middle set well
- 00:35
well the first method will give you a precise average by taking every piece of
- 00:39
data into account it can be a bit skewed if there were a couple of outliers [Girl trying to arrange data]
- 00:43
numbers that were way higher or lower than all the rest in that case you may
- 00:48
be better off going with the median which simply takes the middle number of
- 00:52
data eliminates the highest and lowest figures on either side of it like that
- 00:56
depending on what you're looking for you may also be
- 01:00
interested in finding the mode which is just the number that appears most often
- 01:06
all right which is why we always order our apple pie [Woman ordering apple pie]
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