TSSFL TECHNOLOGY STACK

Solution Two

To find the probability of obtaining one pair, we can break down the problem into a few steps:

Step 1: Choose the rank for the pair....

Is this solution correct ?

To find the probability of obtaining two pairs, we can break down the problem into a few steps.

Step 1: Choose the ranks...

I see in both cases, the problem is to find the value of $X$ , while it does not appear in any of these equations. What I see is $x,\ x^{0}$!