计算[tex=2.357x1.0]c0TSJVPCXQeCvQRUE1PhvMfGikFCAJ6IB7CrFipUjDQ=[/tex] 在给定点的值: [tex=8.571x1.5]0VPLBAHm39IBxmUn9XURa4uRkok8pS1Vyb2S6QaaAQjofsgl861FPBNHDkuv/fxu[/tex]在.点[tex=4.643x1.357]ijnOOfAdiS2voKjOJxjMyg==[/tex]。
举一反三
- 计算[tex=2.357x1.0]c0TSJVPCXQeCvQRUE1PhvMfGikFCAJ6IB7CrFipUjDQ=[/tex] 在给定点的值: [tex=9.286x1.5]7pbkdfYAQEleBway9A8j9jZm/XQAeg1yjiooj6Z/jiagicPypRjySuBwChdaRynL[/tex]在点 [tex=3.857x1.357]hHZg/snX1fyU1sf2kySBGA==[/tex] 。
- 计算[tex=2.357x1.0]c0TSJVPCXQeCvQRUE1PhvMfGikFCAJ6IB7CrFipUjDQ=[/tex] 在给定点的值: [tex=3.571x1.214]6WjqjsBw8KQjgPzSsq26mQ==[/tex]在点[tex=3.857x1.357]fEiHb4QM6JpiQeYfqkUWSQ==[/tex]式中[tex=7.0x1.214]VThoPUaSzJwiKZknj812j2t7X4MkVEoN5mS8OYZ/g5Q=[/tex]。
- 已知[tex=5.0x1.286]nNRgYScRPw16N2lBJqtTsA==[/tex],[tex=5.0x1.286]ZIJz5gTGIgdeWAGMFdoL1A==[/tex],则[tex=6.214x1.286]wE5wtWoL9HR6uGPZrIzvHA==[/tex]成立的[tex=0.571x1.286]XubEW9+1+hkJqH7jXe5MrA==[/tex]值为 A: 1 B: 2 C: 4 D: 6 E: 8
- 有容量分别为[tex=3.286x1.286]pCZ+fPe3X5XtlIcXCf6RGw==[/tex]和[tex=3.286x1.286]JjWMjbwalVPPThZBywJsLQ==[/tex]的独立随机样本得到下述观测结果, (X、 Y为观测值, f为频数)X 12.3 12.5 12.8 13.0 13.5 Y 12.2 12.3 13.0f 1 2 4 2 1 f 6 8 2现已知变量X、Y的总体均呈正态分布。请问在0.05的显著性水平下,可否认为这两个总体属同一分布?[tex=24.786x1.286]OVWwFMgiPzBDnRSqBYypUv4puOxaqZVbzeGoYhEt/ZwiQxP0kGgAAWuaJInyBhH09xLkSWqB6n3qd1WXaKpfvwUNfmmVSMJTzi4wz4IT6q4=[/tex][tex=8.429x1.286]AcUD6cTXhAghaQMem3GRbFMfFVpZHcyA3tP0z+S7RAk=[/tex] [tex=13.357x1.357]ZPe8nXNlBeMmW2cEA+D6DaqP/loFbcVH2QukDH1SMofLM6E74nDyl0WrH8imm/Ai[/tex]
- 判断下列命题是否为真:(1)[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex](2)[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex](3)[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex](4)[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex](5)[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex](6)[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex](7)若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex],则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex](8)若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex],则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]