Excel Worksheet Functions: FACT, PERMUT, and COMBIN

Excel Worksheet Functions:FACT, PERMUT, and COMBINFACTFACT, which computes factorials, is categorized by Excel under Math & Trig Functions.Supply it with a number and it returns the factorial:1. Select a cell for FACT’s answer.2. Click the Insert Function button to open the Insert Function dialog box.3. In the Insert Function dialog box, select FACT and click OK to open its FunctionArguments dialog box.4. In the Number box, type the number whose factorial you want to compute.The answer appears in the dialog box. If you typed 5 in Step 3, for example, 120appears.5. Click OK to put the answer into the selected cell.PERMUTPERMUT is listed under Statistical Functions. It allows you to calculate N P n , where N =the number of objects available and n = the number of objects in each permutation. Thus26P 5 represents the number of five-letter sequences (no repeating letters) you can createfrom the 26 letters of the alphabet. In a permutation, abcde is considered different frombcdae. The equation for the number of permutations is1. Select a cell for PERMUT’s answer.N P n = N!(N − n)!2. Click the Insert Function € button to open the Insert Function dialog box.3. In the Insert Function dialog box, select PERMUT and click OK to open itsFunction Arguments dialog box.

4. In the Number box, type the N in N C n . Here the value is 26.5. In the Number_chosen box, type the n in N C n . Here the value is 5. The answerappears in the dialog box. Here the answer is 65780.6. Click OK to put the answer into the selected cell.