• 2022-06-09
    测定某样品中的含简量,六次平行测定的结果是[tex=21.929x1.286]eh9hucXiLTtxnGou0pm7/BXAQOB32Mc0tu+fA6tc9zXtBm8cOtUQX2d7Q56NkSm9XTwmRMAvW3Rl9wZhDyBetQ==[/tex]。计算这组数据的平均值、平均偏差、标准偏差。[tex=10.643x1.286]vpZePfsnWLpVcIvXUakyh62dgoaqeG0JC3+bfamjeVY=[/tex]
  • 解:平均值为[tex=24.357x3.714]4FEu/S0wd8uodKGu4gdjve0R5LsOfZ6AWUyZyMxWrE2QqvdI/nA5izIbWLl6CAHTsDHTYjYyNllc3Bqi2nI6pSuAe257y6QIXzQPl2uYRpkqqTD0jBpmuJ/CiE6wb7si[/tex]平均偏差为[tex=22.214x3.714]cUIScVE3rpXxU4o0p/hZgnqxhXz58lBxaGPUapQYTHYmF2CALXLRPSLmJt7lklHCvOy9cI04Is2j36Mcu54vnGY0spfnCTKgNJ6tnh6HZPoXFTU1bi501nRSeEvNLg+T[/tex]标准偏差为[tex=21.143x4.0]QXK0azDZyVDDgf7LFrRXrItNJpxipzRN2SJpKnXUmxQm5/vHoyN7ErbPJpVonPu6grvBaFDBCg0Q/bh34wWz1/iYnEWH5Z68IokClHjTMMtKB4/8/K3vxGSeiq9rHnI1AqPChVsXZ4x+09SP8t6pOg==[/tex]

    内容

    • 0

      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}

    • 1

      【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背

    • 2

      下面语句的输出结果是?range(len('HelloWorld')) A: [1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11] B: 11 C: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] D: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]

    • 3

      set1 = {x for x in range(10) if x%2!=0} print(set1) 以上代码的运行结果为? A: {1, 3, 5, 7, 9} B: {1, 3, 5, 7} C: {3, 5, 7, 9} D: {3, 5, 7}

    • 4

      下面是图的拓扑排序的是?(多选)[img=340x240]1802faef6ebcc2a.png[/img] A: 2 8 0 7 1 3 5 6 4 9 10 11 12 B: 2 8 7 0 6 9 11 12 10 1 3 5 4 C: 8 2 7 3 0 6 1 5 4 9 10 11 12 D: 8 2 7 0 6 9 10 11 12 1 3 5 4