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st095 24_s_Causal inference

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    These first two options are again observational studies, and they can't tell us
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    causation. If hours slept were the dependent variable and temporal memory score
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    were the independent variable, we would get the same type of relationship. It
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    would pretty much be the same exact graph, just reflected across the line y
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    equals x. And if we looked at the relationship between sleep and forgetfulness,
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    we would again be doing an observational study, but we'd probably find a
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    negative relationship. For example, if this were forgetfulness instead of
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    temporal memory score, we might find that people who didn't sleep that much had
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    high forgetfulness levels. And people who slept a lot, have low forgetfulness
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    levels, meaning they remember things better. But again, this just shows a
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    correlation, not causation. These last two however, could provide some help.
Cím:
st095 24_s_Causal inference
Video Language:
English
Team:
Udacity
Projekt:
ST095- Statistics
Duration:
0:57
Cogi-Admin edited Angol subtitles for st095 24_s_Causal inference
Cogi-Admin edited Angol subtitles for st095 24_s_Causal inference
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