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Number of Rows - Intro to Descriptive Statistics

  • 0:00 - 0:06
    We could really group this data any way we
    want. In fact, we could only have two
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    rows, one for the number of students
    younger than 50 years old, and one for the
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    number greater. But, we don't have to. We
    could even have one row for each age. So,
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    here we could have 10, 11, 12, and then we
    would count to see how many students are
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    age 10, how many students are age 11. But
    this is not the most convenient way.
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    That's because the frequency would most
    likely be 1 for all of them, maybe 2 for a
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    few. So instead of doing that how about we
    choose an interval for each row. For
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    example 0 to 19 and then 20 to 39. Then we
    can count how many students are between
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    ages 0 and 19, between 20 and 39 etcetera.
    This is called the interval, or bin, or
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    bucket. For the most part we'll either
    call it an interval or the bin. And in
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    this case the bin size is 20. That's
    because it includes 0.
タイトル:
Number of Rows - Intro to Descriptive Statistics
概説:

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Video Language:
English
Team:
Udacity
プロジェクト:
UD827 - Intro to Descriptive Statistics
Duration:
01:08
Udacity Robot edited 英語(米国) subtitles for 03-22 Number of Rows
Udacity Robot edited 英語(米国) subtitles for 03-22 Number of Rows
Udacity Robot edited 英語(米国) subtitles for 03-22 Number of Rows
Cogi-Admin edited 英語(米国) subtitles for 03-22 Number of Rows
Cogi-Admin edited 英語(米国) subtitles for 03-22 Number of Rows
Cogi-Admin added a translation

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