• 2022-06-30
    设总体[img=88x31]17e0a687260bba0.jpg[/img],[img=9x14]17e0a731744d073.jpg[/img]未知,[img=15x22]17e0bcf23606f3c.jpg[/img]为常数,[img=91x17]17e0ab70ca1f215.jpg[/img]为来自X的样本,则[img=9x14]17e0a731744d073.jpg[/img]的置信水平为[img=34x17]17e0bcf24113335.jpg[/img]的置信区间长度为( )
    未知类型:{'options': ['', ' [img=40x37]17e0bcf256c878a.jpg[/img]', ' [img=52x33]17e0bcf26269cf0.jpg[/img]', ' [img=40x37]17e0bcf26dcc38c.jpg[/img]'], 'type': 102}
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