Answer Happy

Introduction Part One You have five different variables: 1, 12, 13, 14, s. You want to make every possible grouping of the five variables. For instance: one grouping could be 12. Another group could be 23. Another group could be 124S, Clc. The order of the variables does not matter. If you only consider the groups of two variables, then there's ten ways of creating those groups: F1F2 13 FIFA ILIS 1273 1214 F2F5 2324 FAES FAIS ist all the different groups that can be made using four variables (again, remember that the order does not matter). Part Two If we're only interested in counting the number of possible groups, we can use the combination formula: nCr TA! rl(n r)!
where "n" is the total number of variables to pick from, 5, and "r" is the number we're trying to put into a group. If we're trying to count the number of different ways we can create groups of two variables, we can calculate 502 one. 51 2!(5 2)! 5-4-3-2-1 21-31 120 2.1.3.2.1 which is the number of groups we calculated when we listed them out in part 10 Using the combination formula, how many different ways can we create groups of three variables? Part Three How many different ways can we create groups of four variables? Part Four How many possible groups, of any size, can you make with the five variables?