What does nCr mean math?

What does nCr mean math?

nCr means if you are given “n” number different items and you have to chose “r” number of items from it, then nCr gives the total number of ways possible. Mathematically it can be written as n!/r!( n-r)!

What is the formula for nCr nCr 1?

rn−r−1.

What is the formula of NC2?

NC2 is calculated by (n!) / (2!*( n-2)!). N has to be greater than or equal to 2, but can be any number in that range.

What NCR statistics?

Combination: nCr represents the selection of objects from a group of objects where order of objects does not matter. nCr = n!/[r! (n-r)!] Where n is the total number of objects and r is the number of selected objects. 3.5 (51)

What is summation of nCr?

This is just the sum of the reciprocals of the cubes of the positive integers. This is just the sum of the reciprocals of the cubes of the positive integers.

What is the value of NC 0?

Prove that nc0 =1 in binomial theorem.