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src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F957d9b42e37d91b0f39206a6a7eebdd1.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F423a1f5194d2bb7ba0b3a468480fb86c.png\">为样本均值,则参数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff3f55a1fb419a0fd628bae01883f3eec.png\">的矩估计量为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbaf475f3deac655b0b242aeca7fb5db1.png\">=( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":43,"source":28,"type":29},[],234065049,[25,11,26,8],"设总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fadd11bd9d6a98f23881622c8e2811a7a.png\">服从参数为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbcf39d8d5d1572b94a58ef617816f0e5.png\">的指数分布,其中\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe4c780cdde50b2d37d3c25621b4d0c29.png\">为未知,\u003Cimg 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