设二维随机变量[tex=2.643x1.357]JzSsOLHw1BX893c-vpTwSw[/tex]的概率密度为[p=align:center][tex=18.786x3.643]lJblPB9MNpIrc6Sy3BdmFbkaFyrp4RTGO_7RxGykxKo-I4vD2e7wfvhV_QHUcESVDob7J7Qc5i7pGIl_PJAS_r1yHyyX9UbbW-pSjUQ0rHY[/tex][/p][p](1) 求 [tex=4.929x1.357]dTTbCs-LUUf5jpSqNpcUXQ[/tex] ; (2) 求 [tex=3.714x1.143]bAuRnS0EozFwlT9vxryEWA[/tex] 的概率 [tex=2.214x1.357]wytExqWE8Yu1mGAB3CE-PA[/tex] .[/p]
设二维随机变量[tex=2.643x1.357]JzSsOLHw1BX893c-vpTwSw[/tex]的概率密度为[p=align:center][tex=18.786x3.643]lJblPB9MNpIrc6Sy3BdmFbkaFyrp4RTGO_7RxGykxKo-I4vD2e7wfvhV_QHUcESVDob7J7Qc5i7pGIl_PJAS_r1yHyyX9UbbW-pSjUQ0rHY[/tex][/p][p](1) 求 [tex=4.929x1.357]dTTbCs-LUUf5jpSqNpcUXQ[/tex] ; (2) 求 [tex=3.714x1.143]bAuRnS0EozFwlT9vxryEWA[/tex] 的概率 [tex=2.214x1.357]wytExqWE8Yu1mGAB3CE-PA[/tex] .[/p]
发布时间:2025-10-22 13:06:35
如图 3 - 18 所示,
a0s3MH7cLIdmiBRR0YN06z6CNSBLltAt0eBYa9j-NEOjA5pCDj07QgjOUKhvNxKVBEPZKeA1ZehzwlAioDtPLGyOftwoUjFAUPvA39cRj4uVONqZv1M8RvIAJG-E0xuo4P7QuTjwMV0EaXkJ49LYeeDmrCfzIqdL2oIAPi-O3T5NUw7dOCMLi2YZhvxkkTe7W4PIG-154UDCxYKEoSenLUt7wiy0ufNifERZms5tm0WFKkIMNs4V5BBtworqUeVy
(2) 利用公式 hxxhdBJLW_63Vh1_IbkAT4-svPKaj5LiXEiQ3HTKWtYXr5IRCJMdChFMLA4t5dshf6ZhlZsuFbkePpckqkr7EQ 来求 A_RYZa-bKKYYpjzBS_r5ng 的密度函数(图 3-19) .
当 Hu5HwsDNHVdJliDwWrBG4w 时, sAth_dxbNfEvvHWa1WKLEQ ;
当 n1dvm7iP9YswoXRdIb8DkZiv84_j-SOOBTLTuV1cQMk 时,
a0s3MH7cLIdmiBRR0YN0665zLd5zB5Z6oPTeLzMqBNKwFoX5TSGhJGkF-KudGFw1SdTQDQK4UG6Fv5U7dk5gWsxnD1wv5jaZSL6i1DIJbQOKBF-QqNku4CfBVYH-aHP4SUGvNnuJEN1T5QuLdGqgyCIcr4o1gdL8NkHn3xGQkGi_ot4aydZl59y5ewmyHJzz
当 HAAKfdm90E_zOxcR2Eqtow 时,
a0s3MH7cLIdmiBRR0YN0665zLd5zB5Z6oPTeLzMqBNKwFoX5TSGhJGkF-KudGFw1SdTQDQK4UG6Fv5U7dk5gWsxnD1wv5jaZSL6i1DIJbQOobjIE4xdAzg-cC8iDKaIeEQ1fTIkGLefgktPHVl2mhpBNnfbe3lkOh5Ru7FYh0U-UkO2YJQwEhPLylomOS2OMkSUsTqxcQe_s171JdCbUzQ
当 dy911bIH71c-nY8eIN64gA 时, sAth_dxbNfEvvHWa1WKLEQ.
综上得
h-L7gtQRUTUcUUsb99t9es3KwxC7L_AaeUokAID7H5_4-X7NWcHvTDNQUlCAWKOCItqX89xT9RI7gXuiC_EC1rqP8jXPTpuOi4f2imOP55KvSN4zJ7DRe3tILfUg2OLCcmYqObJ0tuwxWTeG600TzG4VCKeiKWR4wfu10frrWWU.