Statistics, Random Variable, Data Science, Mathematics, Statistical Learning.
Let’s take an example to understand it better. Tossing a fair coin twice. Let Xᵢ = 1 if i’th toss is heads and Xᵢ = 0 if i’th toss is tails Here i= 1,2 Fₓ₁ₓ₂(0,0) = P(X₁=0 , X₂=0)=1/2 * 1/2 = 1/4 Fₓ₁ₓ₂(0,1)= P(X₁=0 , X₂=1) = 1/2 *1/2 = 1/4 The same info in Tabular form - Since all entries have