Math Question2
2012-01-11 4:23 am
回答 (1)
2012-01-11 4:49 am
✔ 最佳答案
(1) Average number of misprints = 2 * 1.5 = 3(2) The no. of misprints ~ Poi(3)
So, P(more than 2 misprints)
= 1 - exp(-3) - 3exp(-3) - (9/2)exp(-3)
= 0.527
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