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Response to dipsydoodle (Reply #1)

Mon Feb 20, 2012, 05:51 PM

2. THANKS!!! Look forward to it! My question:

 

When do the odds approach 99% 95% 90% 80% 70% ETC?

How would one calculate THOSE kinds of odds without doing iterative calculations?

Is there a formula to start with plugging in 95% 90% 80% etc. as the desired outcome and figuring out what the sample size needs to be? I'm sure there is. I'm sure I might have learned this in statistics and probability in college, but I forgot how to do that. Does it have a name? How can I search for the formula or theorem?

EDIT TO ADD: OH SHIT... your graph has all the answers!!!! "BIRTHDAY PARADOX"

If I ever were teaching a high school math class, or substituting in one, I would use this paradox to start the class.

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MarkCharles Feb 2012 OP
dipsydoodle Feb 2012 #1
LineLineReply THANKS!!! Look forward to it! My question:
MarkCharles Feb 2012 #2
dipsydoodle Feb 2012 #4
MarkCharles Feb 2012 #6
MarkCharles Feb 2012 #3
dipsydoodle Feb 2012 #5
MarkCharles Feb 2012 #7
TheMadMonk Feb 2012 #8
MarkCharles Feb 2012 #10
TheMadMonk Feb 2012 #11
MarkCharles Feb 2012 #12
Scuba Feb 2012 #9
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