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| rev | Admin | (Created page with "'''Answer: E''' Out of 400 lives initially, we expect <math>400_{25} p_{60}=400 \frac{l_{85}}{l_{60}}=400\left(\frac{61,184.9}{96,634.1}\right)=253.26</math> survivors The standard deviation of the number of survivors is <math>\sqrt{400_{25} p_{60}\left(1-{ }_{25} p_{60}\right)}=9.639</math> To ensure <math>86 \%</math> funding, using the normal distribution table, we plan for <math>253.26+1.08(9.639)=263.67</math> The initial fund must therefore be <math>F=(264)(500...") | Jan 18'24 at 12:15 | +548 |