The drawing algorithm is as follows. If 10 people bought goods X each with one unit of goods and participate in the drawing of an advertising prize, then everything is clear. Each possesses one unit of goods and has equal chances of receiving a prize of 1 in 10.
Same thing with ILF. 10 owners, each of which has 1 ILF, have a chance of receiving a 1 to 10 prize.
But suppose the real situation is as follows. ILF acquired only 3 people. We will conditionally call them A, B, and C.
The distribution of ILF between them is as follows
A - 6 ILF
B - 3 ILF
S - 1 ILF
Their chances of receiving the main prize will also be distributed.
A will receive 6 chances, B will receive 3 chances, C will receive 1 chance
The pool of the draw will look as follows.
Total number of participation - 10 ILF units
Draw Pool:
A, A, A, A, A, A, B, B, C
That is, the probability of winning the main prize for A = 60% (or 6x10%),
For B = 30% (or 3x10%) and for C = 10% (or 1x10%)