In Sixth Line You Have Written
"Also, observe that the probability of getting any of the numbers 1, 2, 3, 4, 5, and 6 on the top face of the dice is 1 as we will surely get any one of the numbers from 1 to 6 upon throwing a die."
It Will come Dice Instead Of die
Come
Actually Dice is plural of Die.
Consider the following figure:
The object in the above figure is a Die which you generally used in playing Ludo.
In the same way, when we talk about more than one, then we use Dice.
Consider the following figure:
Here, the above figure shows the pair of two dice.