The Shape of Data: Distributions: Crash Course Statistics #7
When collecting data to make observations about the world it usually just isn't possible to collect ALL THE DATA. So instead of asking every single person about student loan debt for instance...
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Hi, I’m Adriene Hill and Welcome to Crash Course Statistics. We’ve spent out a lot of time talking about data visualization and different kinds of frequency plots--like dot-plots and histograms--that tell us how frequently things occur in data we actually have. But so far in this series, the data we have talked about usually isn’t ALL the data that exists. If I want to know about student loan debt in America, I am definitely not going to ask over 300 million Americans. I’m lazy like that. But maybe I can find the time to ask 2,000 of them. Samples...and the shapes they give us...are shadows of what all the data would look like. We collect samples because we think they’ll give us a glimpse of the bigger picture. They’ll tell us something abou...
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Hi, I’m Adriene Hill and Welcome to Crash Course Statistics. We’ve spent out a lot of time talking about data visualization and different kinds of frequency plots--like dot-plots and histograms--that tell us how frequently things occur in data we actually have. But so far in this series, the data we have talked about usually isn’t ALL the data that exists. If I want to know about student loan debt in America, I am definitely not going to ask over 300 million Americans. I’m lazy like that. But maybe I can find the time to ask 2,000 of them. Samples...and the shapes they give us...are shadows of what all the data would look like. We collect samples because we think they’ll give us a glimpse of the bigger picture. They’ll tell us something abou...
