已知 u ~ N (0,1) ,试求 P 1 ( u ≤ -1.64 ) =? , P 2 ( u ≥2.58 ) =? P 3 ( -0.34 ≤ u
已知 u ~ N (0,1) ,试求 P 1 ( u ≤ -1.64 ) =? , P 2 ( u ≥2.58 ) =? P 3 ( -0.34 ≤ u
发布时间:2026-01-25 02:09:03
已知 u ~ N (0,1) ,试求 P 1 ( u ≤ -1.64 ) =? , P 2 ( u ≥2.58 ) =? P 3 ( -0.34 ≤ u
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