<span>The probability, or expectation value for X in a block, equals the number of occurrences of X in all the blocks divided by the total number of blocks
</span>
well E(X)=µ
and
Var(X)=E[(X-µ)^2]
I hope this helps. Since there are verticale angles that’s why I added another x.
Well, the square root of 12 is 3.464101615
