设随机变量具有对称的密度函数，即，为的分布函数，则对任意实数,.https://img-ph-mirror.nosdn.127.net/lEiAQJQKvY14Qo2qj0E1Aw==/1072982611321422975.pnghttps://img-ph-mirror.nosdn.127.net/9BNVrADIkYbX410xL65RVg==/6631230493421812375.pnghttps://img-ph-mirror.nosdn.127.net/055psK1qEelFN3vSsaG0zQ==/6599288581122298726.pnghttps://img-ph-mirror.nosdn.127.net/lEiAQJQKvY14Qo2qj0E1Aw==/1072982611321422975.pnghttps://img-ph-mirror.nosdn.127.net/5ISpkzigMMeRmCo4M1UdLQ==/6608183630190574284.pnghttps://img-ph-mirror.nosdn.127.net/DDNn9dWDdvU11YRbl_vFSg==/285697101462025554.png

设随机变量服从正态分布,且已知标准正态分布函数表如下: 则下列结论不正确的是https://img-ph-mirror.nosdn.127.net/lEiAQJQKvY14Qo2qj0E1Aw==/1072982611321422975.pnghttps://img-ph-mirror.nosdn.127.net/_5EKC-OYqXO2iGhMRx69Og==/6619385454654777394.pnghttps://img-ph-mirror.nosdn.127.net/mDKpuJY3aKMoNZ1yikpAlA==/6631274473887558980.pnghttps://img-ph-mirror.nosdn.127.net/NWKfu-UjOFTfIbrLH342kw==/6631309658261856133.png

设随机变量 在区间 上服从均匀分布，对进行三次独立的观测中，则刚好有两次的观测值大于3的概率。https://img-ph-mirror.nosdn.127.net/lEiAQJQKvY14Qo2qj0E1Aw==/1072982611321422975.pnghttps://img-ph-mirror.nosdn.127.net/-iZILG22F9hEJk4ASe-Jog==/66316010