设随机变量 [tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex] 与 [tex=0.643x1.0]jDVSpgNhHe+VJmgvx3gg1Q==[/tex] 独立同分布，且 [tex=9.357x1.5]IgJPbGtoGhxvlxBNvKT/lE9/jIo/idkuHQceEGFGa/XF5gCRwJhqAmPzNDih9EjY[/tex], 试求 [tex=4.143x1.5]mizsmYKoG6XHrFGAfjqkQA==[/tex].
设随机变量 [tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex] 与 [tex=0.643x1.0]jDVSpgNhHe+VJmgvx3gg1Q==[/tex] 独立同分布，且 [tex=9.357x1.5]IgJPbGtoGhxvlxBNvKT/lE9/jIo/idkuHQceEGFGa/XF5gCRwJhqAmPzNDih9EjY[/tex], 试求 [tex=4.143x1.5]mizsmYKoG6XHrFGAfjqkQA==[/tex].
设随机变量[tex=0.857x1.0]N7iCrOsS+NNEUUlnsYCi1g==[/tex]与[tex=0.643x1.0]O+viFNA0oHTwnBtQyi80Zw==[/tex]独立同分布，且[tex=10.571x1.5]IgJPbGtoGhxvlxBNvKT/lE9/jIo/idkuHQceEGFGa/U0Ge2y8mBrm3ata/kQ6Hwiz7s4JoakyRETTTFq/WhTZQ==[/tex] 试求 [tex=4.0x2.0]WyCFwrkQpPK9QElnNXGPFQ==[/tex]
设随机变量[tex=0.857x1.0]N7iCrOsS+NNEUUlnsYCi1g==[/tex]与[tex=0.643x1.0]O+viFNA0oHTwnBtQyi80Zw==[/tex]独立同分布，且[tex=10.571x1.5]IgJPbGtoGhxvlxBNvKT/lE9/jIo/idkuHQceEGFGa/U0Ge2y8mBrm3ata/kQ6Hwiz7s4JoakyRETTTFq/WhTZQ==[/tex] 试求 [tex=4.0x2.0]WyCFwrkQpPK9QElnNXGPFQ==[/tex]
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