please help anybody who can
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It turns out that over 400 years, January 1 will fall on:
Monday or Saturday, 56 times each
Wednesday or Thursday, 57 times each
Sunday, Tuesday, or Friday, 58 times each
(pretty evenly distributed).
Calculating the referred probability this way will yield 172/400 or 43/100 - a tad above the 3/7 obtained before, but not by much (43% vs 42.857%)
hope it helps
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