There are two orders in which red is first: red, yellow, green and red, green, yellow. Similarly, there are two orders in which yellow is first and two orders in which green is first. This makes six possible orders in which the pieces can be picked up. The symbol "!
Some examples are:. This means that if there were 5 pieces of candy to be picked up, they could be picked up in any of 5! How many possible meals are there? You can think of it as first there is a choice among 3 soups. Suppose that there were four pieces of candy red, yellow, green, and brown and you were only going to pick up exactly two pieces. How many ways are there of picking up two pieces?
Table 2 lists all the possibilities. The first choice can be any of the four colors. For each of these 4 first choices there are 3 second choices. More formally, this question is asking for the number of permutations of four things taken two at a time. The general formula is:.
In other words, it is the number of ways r things can be selected from a group of n things. John John 1, 7 7 silver badges 14 14 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. Upcoming Events. Featured on Meta.
Now live: A fully responsive profile. The unofficial elections nomination post. Related 4. Hot Network Questions. List all possible combinations of 3 variables. Thread starter abberyfarm Start date Jun 21, Joined Aug 14, Messages I have the following 1.
A set of numbers from 1 to A set of numbers list of 1 to Excel Facts. Convert text numbers to real numbers. Click here to reveal answer. Select a column containing text numbers. Faster than "Convert to Number". Oeldere Well-known Member. Joined Dec 29, Messages 2, Wrong answer so I deleted the text.
BenMiller Well-known Member. Joined Mar 19, Messages Hi, try the macro: Code:. Transpose tbl Cells a, 1. Transpose tbltime Next i End Sub. Hello Hurgadian, Thank you for your help,that code works perfect. I appreciate your time.
0コメント