2x-(2x)^2
1836376
20309910
17888970
3215318
4121508
7040118
5*$\frac{1}{16^{7}}$
213529520041651859766
1999742
137817.7407
24543491
4608849.2044
4.85358240282922120
1.99059895224465720
2.59247344507387821...
1025^2
let x and y be two random variables such that E(x)=5, var(x)=2,E(y)=5,E(x*y)=7,var(x+y)=4 find cov(x,y) and var((x-y)
(−3ab + 2a) + (−1+10ab−5a)− (8a + 11ab − 3) + 11a
0.15 $\sqrt{3060}$
