Or Put these nine cards into three groups of three according to similarities you see.
1
-1
T
y=x+1
-
0
- 4
1
-4
1
.
n
2
- 2
3
-1
2
1
y=2x-4
0
1
-2
-1
1
0
-1
1
2
-1
0
3

Can someone check my answer? you

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?