How to solve Probability Problems in Genetics using Factorial Method

How to solve the same problem using binomial expansion method: In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example, 5 ! = 5 × 4 × 3 × 2 × 1 = 120. In statistics, a full factorial experiment is an experiment whose design consists of two or more factors, each with discrete possible values or “levels“, and whose experimental units take on all possible combinations of these levels across all such factors. In mathematical operations, “n“ is a variable, and it is often found in equations for accounting, physics and arithmetic sequences. A variable is a letter or symbol that stands for a number and is used in mathematical expressions and equations. #statistics #genetics #lawOfProbability