设二维随机变量[tex=2.786x1.286]AG5D6gU/evQZlfwisXgzYw==[/tex]的联合密度函数为[p=align:center][tex=15.786x3.643]lJblPB9MNpIrc6Sy3BdmFeZj3i1/SIQqtc8pMJ8ekw0hpO2JWjN0KbCNGW8p7yRliuhj4gEfxKVKP0sL93PRo5jyEZZ6oxEqRp+wTTwwCB/5Jf4bZ/9nPNisFlUzHOxo[/tex]求常数[tex=0.571x1.286]mRKL/orzOudCEARA8qn3Kw==[/tex]和联合分布函数[tex=3.0x1.286]GOR0R/NCj/M/hw3l3obOPw==[/tex].
举一反三
- 设随机变量[tex=0.857x1.0]N7iCrOsS+NNEUUlnsYCi1g==[/tex]的密度函数为[p=align:center][tex=11.286x3.643]BTeyLq0XT+/djvCqLM2VYcbQFc1gsIBqF45L/UpLqn634B/7NR3oOI9yXzm+bQg0reDqwSGoE8+dH08bPemQ4Hml+Jx+kyPdUPmw+4FemqU=[/tex]求: (1) 常数 [tex=0.571x1.286]mRKL/orzOudCEARA8qn3Kw==[/tex].(2) 常数 [tex=0.5x1.286]m/VGGUpsnKNFGYXigdTc/A==[/tex] , 使 [tex=9.929x1.286]g+trMWLSP55E3i2fetUsrgVglPLZbIa9txf6GCXRv0Y=[/tex] . (3) 分布函数 [tex=2.071x1.286]QnT5Ukq2Ukk4CB2YYrq4eQ==[/tex].
- 设二维随机变量[tex=2.786x1.286]AG5D6gU/evQZlfwisXgzYw==[/tex]的联合密度函数为[p=align:center][tex=18.786x3.643]lJblPB9MNpIrc6Sy3BdmFTulnCSmzPh4E9xtF58toUCeK0TiyLWgTM9bJi3NqT2iMczjkKX1Q/Fre0z38dI9idnd/d01g0kUlwKQnBjmruYCuWyAPx5D0Mn+UYGqiADP[/tex]求 [tex=4.929x1.286]bstb6Acm/GnARrPc8f1uPw==[/tex] 的密度函数.
- 设随机变量[tex=2.786x1.286]AG5D6gU/evQZlfwisXgzYw==[/tex]的联合密度函数为[p=align:center][tex=14.143x3.643]lJblPB9MNpIrc6Sy3BdmFUO0inJrAJ+S9rWSLKaoQEwZArhdhamjfsTonNCB7tgOdWR/hKgLvbpk95zxo1Qj2FZaPRkK91X1tSDU6k59qEM=[/tex]求 [tex=4.286x1.357]n/CQ18GUhnUVt9w6H4KtW2FiusirI7U4IIl2+H1BcqE=[/tex] .
- 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}
- 设随机变量[tex=2.786x1.286]AG5D6gU/evQZlfwisXgzYw==[/tex]的联合密度函数为[p=align:center][tex=12.643x3.643]lJblPB9MNpIrc6Sy3BdmFblHfEN66pBcu0QuHw83KIQ3cdudKq3vlH+DZ0H6zdGeW8uEDxfKFdi4ReFZRbtgP/bVRWUbaN7hKPugDB3/GcI=[/tex]求 [tex=9.429x1.357]3mx/zSqcilpFkVvGSt6vqzwBxGF2wXRFoaQYFr/1xmy0RxXWtAvv9CRYSZFadaLG[/tex]