• 2022-06-18 问题

    设X的分布律为[img=269x132]17e0b47583f7dfa.jpg[/img]而分布函数[img=214x31]17e0b4758e675c8.jpg[/img] A: 0.6 B: 0.35 C: 0.25 D: 0

    设X的分布律为[img=269x132]17e0b47583f7dfa.jpg[/img]而分布函数[img=214x31]17e0b4758e675c8.jpg[/img] A: 0.6 B: 0.35 C: 0.25 D: 0

  • 2022-06-12 问题

    When was Valentine supposedly executed? A: This was on February 14, 269 A.D.. B: This was on March 14, 269 A.D.. C: This was on July 7, 269 A.D.. D: This was on January 14, 269 A.D..

    When was Valentine supposedly executed? A: This was on February 14, 269 A.D.. B: This was on March 14, 269 A.D.. C: This was on July 7, 269 A.D.. D: This was on January 14, 269 A.D..

  • 2022-06-17 问题

    一块矩形草坪的长比宽多10米,它的周长是132米,求宽x所列的方程是(  ) A: x+10=132 B: 2x+10=132 C: 2(2x+10)=132 D: 2(x-10)=132

    一块矩形草坪的长比宽多10米,它的周长是132米,求宽x所列的方程是(  ) A: x+10=132 B: 2x+10=132 C: 2(2x+10)=132 D: 2(x-10)=132

  • 2021-04-14 问题

    132

    132

  • 2021-04-14 问题

    十进制数269转换成十六进制数是

    十进制数269转换成十六进制数是

  • 2022-05-30 问题

    十进制数269转换成十六进制数是

    十进制数269转换成十六进制数是

  • 2022-06-09 问题

    十进制数269转换成十六进制数是

    十进制数269转换成十六进制数是

  • 2022-06-12 问题

    十进制数269转换成十六进制数是

    十进制数269转换成十六进制数是

  • 2022-07-28 问题

    十进制数269转换成十六进制数是

    十进制数269转换成十六进制数是

  • 2022-06-06 问题

    设X, Y为两个随机变量,Var(X)=20, Var(Y)=80,[img=135x49]1803b3b774e9a0f.png[/img],则Var(X+Y)= A: 148 B: 132 C: 126 D: 110

    设X, Y为两个随机变量,Var(X)=20, Var(Y)=80,[img=135x49]1803b3b774e9a0f.png[/img],则Var(X+Y)= A: 148 B: 132 C: 126 D: 110

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