Would guess that it's someplace in this range right over there but let me actually calculate it. I would guess that it's someplace, not even calculating it, I You could also calculate the mean, it would take a little bit more time. The sake of simplicity, I'll think about the median here, I can eyeball that to some degree. Of this distribution? So there's a few ways to measure center, mean or median, just for It's a left-skewed distribution because the tail goes to the left. That we have a left-skew or it is a left-skewedĭistribution right over here. We have this fairly long tail to the left and so this tells us Is in this part between 20 and 25, but then So what we see is, we have, in most of the distribution Some of these you mightīe able to come with the actual numbers, you might be able to calculate some of these, but really just to get a sense of it, why don't you take a shot at it.
Shot at describing the shape, the center, the spread and the outliers. So why don't you pause this video and see if you can take a On one Monday, 22 teenagers took the test. Must correctly answer at least 20 questions. Olds to take a 25 question knowledge test in order to It says in the state of Connecticut, the Department of Motor Vehicles, the DMV, requires 16 and 17 year So now, given that, let'sĭescribe the distribution right over here. If you don't see them, it's a good idea toĬomment just to make sure that you are being Should at least comment about outliers, even And for spread you could use range, you could use interquartile range, you could use something likeĪ mean absolute deviation, you could use the standard deviation, these are all measures of spread. We've talked about this before, you have your mean, you have your median, these are the two most typical ones. Ways to be thinking about the center of distribution, Other types of shapes, you'll have your center of distribution. It could be symmetric, these are the ones that we typically see, although there might be There could be right-skew, and we'll see examples of these. And when we're talking about shape, there could be left-skew,
If you're asked to describe a distribution, there'sįour things that you should be thinking about. Now before we even readĪbout this distribution or look at this distribution, This video is do exactly that, in fact, this one we're gonna describe and in a future video we're Sometimes in life, say on an exam, especially on something like an AP exam, you're asked to describe
And so we're gonna get an example of doing that right over here. Life, like say, on an exam, in particular, like an AP exam, you might be asked to describe
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