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Summary Statistics

  • Q: Why did the statistics teacher spend far more time on mean and median than on standard deviation and variance?

    A: The department chair said to focus on central concepts.

    Larry Lesser

  • by Eveline Pye

    War-like as the robin, territorial, blooded,
    her reputation bleached pencil-pale
    to create a sweet-sounding nightingale,
    an icon of care in the carnage of Crimea.

    No milksop angel offering only
    deathbed solace, Longfellow’s lady
    of the lamp sat in the glimmering gloom
    classifying the dead, drawing up tables.

    The robin’s song is not loud, it has no
    fancy trills and whistles; Florence
    talked the simple truth of numbers.
    Statistics saved a legion of soldiers.

  • by Eveline Pye

    We talk of beautiful words, art, buildings
    when they‘re not part of the natural world.
    An x in Algebra is no more abstract than
    an idea in philosophy, just more useful.

    It can’t be use that makes the difference.
    Keats found beauty in a Grecian urn,
    surely practical at some stage of its life:
    no one is blind to the beauty of symmetry.

    We understand Blake’s awe of the tiger’s stripes.
    Why not awe at Gaussian curves? Of course,
    I know there is no great beauty in a single number,
    in a four or a seven or an eight, but it’s the same

    with the alphabet. Where is the wonder in a b
    or a k or a t? It’s sublime combinations,
    relationships between  letters
    that create words and sounds we love.

    Look. See the numbers shine in my eyes.

  • I understand that the average lifespan of a horse is 27 years with a standard deviation of about 4 years.  Thus, it is pretty rare for a horse to live past 40 - but the Guinness Book of World Records says there was one horse named “Old Billy” that used to pull barges up and down canals in England.  That horse was born in 1760 and lived to be 62 years old. I had a medical appointment on my 62nd birthday and the doctor said I was healthy as a horse.  That’s when I decided to slow down.  I want to be healthy as a giant tortoise. 

    Dennis Pearl

  • Information is the oil of the 21st century, and analytics is the combustion engine.

    Peter Sondergaard (1965 - )

  • Lyric © 2015-2016 Lawrence M. Lesser
    Sung to the tune of: "Home on the Range"

    Oh give me a range where the cattle all graze
    By the range of the mountains nearby.
    You may have heard other types of this word
    Like where missiles and bullets do fly:

    CHORUS: Oh, give me the range,
    Like the range of the notes of this song.
    When melody's scanned, just one octave is spanned,
    That helps us to sing along!

    Let's look at the facts -- first, label the max
    And the minimum value you see.
    Then you subtract and report back
    Their positive dif'rence to me! (Repeat Chorus)

    Oh it's the first tool we learn of in school
    To measure variation:
    Its units align with the data assigned,
    But an outlier causes inflation! (Repeat Chorus)