正态总体方差已知时，在小样本条件下，总体均值在 [tex=1.929x1.143]yh3n57YpM0RFxvBYRVe30A==[/tex] 置信水平下的置信区间可以写为[input=type:blank,size:4][/input]。
未知类型：{'options': ['[tex=5.357x2.786]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggXQJS4ll8t7yYDqeMFnFXajnOSzE9PdhekpGChVwk5d2g==[/tex]', '[tex=5.214x2.429]nc6fcPS4chy6v2YUOLIF7EGdbxzZBYaFFcfjN2n4PYpS5SLN/Ioph/bUQWytjGJE[/tex]', '[tex=5.357x2.429]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVnUnDrwMgz6FH5iPKcW+ldUGpYAp0mGlVRfN9mQxtjcw==[/tex]', '[tex=4.714x2.5]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVP0FqJQ4qRHev6lUgN9e7+[/tex]'], 'type': 102}
未知类型：{'options': ['[tex=5.357x2.786]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggXQJS4ll8t7yYDqeMFnFXajnOSzE9PdhekpGChVwk5d2g==[/tex]', '[tex=5.214x2.429]nc6fcPS4chy6v2YUOLIF7EGdbxzZBYaFFcfjN2n4PYpS5SLN/Ioph/bUQWytjGJE[/tex]', '[tex=5.357x2.429]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVnUnDrwMgz6FH5iPKcW+ldUGpYAp0mGlVRfN9mQxtjcw==[/tex]', '[tex=4.714x2.5]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVP0FqJQ4qRHev6lUgN9e7+[/tex]'], 'type': 102}
举一反三
- 对于非正态总体，在大样本条件下，总体均值在 [tex=1.929x1.143]yh3n57YpM0RFxvBYRVe30A==[/tex] 置信水平下的置信区间可以写为[input=type:blank,size:4][/input]。 未知类型：{'options': ['[tex=5.357x2.786]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggXQJS4ll8t7yYDqeMFnFXajnOSzE9PdhekpGChVwk5d2g==[/tex]', '[tex=4.857x2.5]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggWCei6N1XRg9/Dvf/xW7EkCj7HnSTfzhJxhRFY+EzrGrg==[/tex]', '[tex=5.357x2.429]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVEJQ+6G0MqH18U5o587F1h[/tex]', '[tex=4.714x2.5]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVP0FqJQ4qRHev6lUgN9e7+[/tex]'], 'type': 102}
- 正态总体方差未知时，在小样本条件下，总体均值在 [tex=1.929x1.143]yh3n57YpM0RFxvBYRVe30A==[/tex] 置信水平下的置信区间可以写为[input=type:blank,size:4][/input]。 未知类型：{'options': ['[tex=5.214x2.786]rgT+dRllwmLDhFQldNsgE6fzCvz4gWNsmR9WHuj8hEqkpfy/P7KLxzxJCvIvOM+Bdqr/s9ghtAl0ghJvcECwZw==[/tex]', '[tex=5.143x2.429]nc6fcPS4chy6v2YUOLIF7MWbMgHSwJUGrwSWpKlPAQocur2AtCDiyZNiS/LLpzLT[/tex]', '[tex=5.357x2.429]rgT+dRllwmLDhFQldNsgE/Ik8vjGgQN3JCmaVFOAggVnUnDrwMgz6FH5iPKcW+ldUGpYAp0mGlVRfN9mQxtjcw==[/tex]', '[tex=4.571x2.5]nc6fcPS4chy6v2YUOLIF7EGdbxzZBYaFFcfjN2n4PYoJQqteVcP43+tdfrpAUDm6[/tex]'], 'type': 102}
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']