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Response to Bucky (Reply #8)

Thu Jan 14, 2021, 05:52 PM

37. It is still meaningless

It is still meaningless. Percentile does not apply to a random distribution of dates. It would apply if there were a normal gaussian or Poisson distribution or several other distributions. Think test scores for a large population of people. 99 percentile means the person scored better than 99% of the test takers. Or diameter of a penny. Those are all random sizes, but distributed close to the standard size. Some might be a few thousandths bigger and some slightly smaller. A penny at the 99 percentile is bigger than 99% of them. But dates? What does that mean? If you took the population of a state and plotted their date of birth (just the number like 5) they would all have about the same number of people, except for the 29th and30th eleven months have it), and 31st (only 7 months). There will be some that have a few more people and others that have a few less. What they should look at is the standard deviation of that set. And even then, it doesn’t tell you much because each day is different and independent from the other. I am not a statistician and my statistics class I took was back when we last had a TV star in the White House ( not Bonzo the chimp, but his dumber costar).

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Bucky Jan 2021 OP
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LineLineLineReply It is still meaningless
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