"\\def\\arraystretch{1.5}\n \\begin{array}{c:c:c:c:c:c:c}\n Sun. & Mon. & Tues. & Wed. & Thurs. & Fri. & Sat. \\\\ \\hline\n & & & & 1 & 2 & 3 \\\\ \n \\hdashline\n 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\\ \\hline\n11 & 12 & 13 & 14 & 15 & 16 & 17 \\\\ \\hline\n18 & 19 & 20 & 21 & 22 & 23 & 24 \\\\ \\hline\n25 & 26 & 27 & 28 & 29 & 30 & 31 \\\\ \\hline\n\\end{array}"
In August Monday comes four times
"P(test \\ will\\ fall \\ on\\ Monday)={4 \\over 31-9}={2 \\over 11}\\approx0.1818"
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