下列关于一元线性回归方程和相关系数的关系,错误的有[input=type:blank,size:6][/input] .
未知类型:{'options': ['[tex=7.0x1.286]3MLBT5/vXhbER5Xw5xRXlCzvyvWAricQrIdr5f7KtJ8=[/tex],[tex=3.786x1.286]x/PZ10mfawCpm6uF3YeQZQ==[/tex]', '[tex=7.0x1.286]00xdabWduzRJwWhkeHAIrXyRi9DIufr357xNXVZR60Q=[/tex],[tex=3.071x1.286]qxUp+OtnLqE/WgqAL4wi5Q==[/tex]', '[tex=5.5x1.286]TZmiu0p8eBg7eJ5WeqbxHlszNHstL61dd8SDEij6MJ0=[/tex],[tex=3.071x1.286]+9CAxHocicOeruXEx/s9JA==[/tex]', '[tex=7.0x1.286]BfarU7srnEBJHCwqU1yt9gpnu7DswRnMWsBBVEt9JoM=[/tex],[tex=3.071x1.286]qxUp+OtnLqE/WgqAL4wi5Q==[/tex]', '[tex=6.286x1.286]OyOtrunegbGTJ/m5NV6H0iBGigJ4fr/Q8FhxZqV0URg=[/tex],[tex=3.071x1.286]+9CAxHocicOeruXEx/s9JA==[/tex]'], 'type': 102}
未知类型:{'options': ['[tex=7.0x1.286]3MLBT5/vXhbER5Xw5xRXlCzvyvWAricQrIdr5f7KtJ8=[/tex],[tex=3.786x1.286]x/PZ10mfawCpm6uF3YeQZQ==[/tex]', '[tex=7.0x1.286]00xdabWduzRJwWhkeHAIrXyRi9DIufr357xNXVZR60Q=[/tex],[tex=3.071x1.286]qxUp+OtnLqE/WgqAL4wi5Q==[/tex]', '[tex=5.5x1.286]TZmiu0p8eBg7eJ5WeqbxHlszNHstL61dd8SDEij6MJ0=[/tex],[tex=3.071x1.286]+9CAxHocicOeruXEx/s9JA==[/tex]', '[tex=7.0x1.286]BfarU7srnEBJHCwqU1yt9gpnu7DswRnMWsBBVEt9JoM=[/tex],[tex=3.071x1.286]qxUp+OtnLqE/WgqAL4wi5Q==[/tex]', '[tex=6.286x1.286]OyOtrunegbGTJ/m5NV6H0iBGigJ4fr/Q8FhxZqV0URg=[/tex],[tex=3.071x1.286]+9CAxHocicOeruXEx/s9JA==[/tex]'], 'type': 102}
举一反三
- 下列方程中是一阶微分方程的是[input=type:blank,size:4][/input]. 未知类型:{'options': ['[tex=8.0x1.571]SnLzj4UlSfnGqNtEzxfZSuZwslGsWxsvP2Y+yf7H578Vefe1Ol/nJT135DjkdnSNNikL3arAj80BjvPHaHCDiA==[/tex]', '[tex=10.571x1.571]JR4yrHJRIZfJXwhFSObwrfajFnWUvXzM/YiA3M6aDKuVBZ8I+7v5iXTXdA3E6Rm4vOE2BCfPwFP2rmRygXKEUDk1qLsNDCJ2p8GEbfCSr2s=[/tex]', '[tex=5.643x1.357]m0sKckxx+jZ9iltApBtB23TBISIOx/g0judcsS+akNFZrUNCq3g+BIVQwGbQEh/C[/tex]', '$y^{(4)}+5 y^{\\prime}-\\cos x=0$'], 'type': 102}
- 函数[tex=7.643x1.5]Km78F0qTAQVQZhMZLgUz0A1hsy3C8mN3/V7thFOwaXLXjSFaYU436ucGtjXUBc7v[/tex]在点[tex=2.143x1.286]q8d9ecMZwZI3gbdeOe+7AA==[/tex]处的偏导数存在的情况是[input=type:blank,size:6][/input] . 未知类型:{'options': ['[tex=3.143x1.286]QCyquMNkdBfbwWD583knIA==[/tex],[tex=3.071x1.286]Y5jWRaZ85cCEpnRpBoHFlw==[/tex]都存在', '[tex=3.143x1.286]QCyquMNkdBfbwWD583knIA==[/tex]存在,[tex=3.071x1.286]Y5jWRaZ85cCEpnRpBoHFlw==[/tex]不存在', '[tex=3.143x1.286]QCyquMNkdBfbwWD583knIA==[/tex]不存在,[tex=3.071x1.286]Y5jWRaZ85cCEpnRpBoHFlw==[/tex]存在', '[tex=3.143x1.286]QCyquMNkdBfbwWD583knIA==[/tex],[tex=3.071x1.286]Y5jWRaZ85cCEpnRpBoHFlw==[/tex]都不存在'], 'type': 102}
- 已知[tex=0.929x1.286]uswT/CEcOIwMpCvTz/zeaA==[/tex]服从二项分布,且[tex=4.214x1.286]jHKoJFcBeWSDVq3Mp/2yWA==[/tex],[tex=4.786x1.286]/85xArQsuIJLby93AlSAIQ==[/tex],则二项分布的参数为[input=type:blank,size:6][/input] . 未知类型:{'options': ['[tex=2.429x1.286]FMkUd/NyKUVDaZVjZ+xc4A==[/tex],[tex=3.071x1.286]4tAaeJig81B7OaY1K40wWA==[/tex]', '[tex=2.357x1.286]8EBFVlQYbxEoRz72DtMB2Q==[/tex],[tex=3.143x1.286]gXbMbDOuOSsF5ks6t1WsKQ==[/tex]', '[tex=2.357x1.286]DFYCWSsSdbof6fnUzH+r6A==[/tex],[tex=3.071x1.286]J2pC/DVetJOh29JuoJst6A==[/tex]', '[tex=2.929x1.286]b4nNaCyjLvwULwJSk5XA4g==[/tex],[tex=3.071x1.286]Z96P0CMzF3JKPEK31qI1tg==[/tex]'], 'type': 102}
- 设[tex=0.786x1.286]pi/GsQ3apuRt43V3XQq/tA==[/tex]为[tex=2.643x1.286]Pcp8G3f9iSqumpymQTeO6g==[/tex]矩阵,且[tex=2.786x1.286]i0oIAe6bCjfxS1bfrf7JZA==[/tex],若[tex=0.786x1.286]pi/GsQ3apuRt43V3XQq/tA==[/tex]的行向量组线性无关,则[input=type:blank,size:6][/input] . 未知类型:{'options': ['[tex=3.071x1.286]/PHgqZoqTltHfk0kRaD6TA==[/tex]有无穷多解', '[tex=3.071x1.286]/PHgqZoqTltHfk0kRaD6TA==[/tex]仅有一解', '[tex=3.071x1.286]/PHgqZoqTltHfk0kRaD6TA==[/tex]无解', '[tex=3.357x1.286]X2hN7n3UmL0lWQo53x55cw==[/tex]仅有零解'], 'type': 102}
- 向量[tex=5.643x1.286]UOUVlYY3Owd/9Y+4aGhD2Q==[/tex]在[tex=4.786x1.286]x/DRKltwGOjd6FFY9joZ6Q==[/tex]上的投影[tex=3.214x1.286]HwD6aHO6Qt0l6J++EPGgPBkdil9ILD3xu4YblbhvSoE=[/tex][input=type:blank,size:6][/input] ,[tex=0.5x1.286]PGyKeLDo0qv9T0n29ldi6w==[/tex]在[tex=0.571x1.286]mRKL/orzOudCEARA8qn3Kw==[/tex]上的投影[tex=3.143x1.286]HwD6aHO6Qt0l6J++EPGgPJ4STKvTqeKlzMVUIz66NNQ=[/tex][input=type:blank,size:6][/input] .