SOLUTION: Phil has 4 books to read but cannot take them all on vacation. Use Pascal’s triangle to find the number of ways he can choose 3 books.

Algebra ->  Probability-and-statistics -> SOLUTION: Phil has 4 books to read but cannot take them all on vacation. Use Pascal’s triangle to find the number of ways he can choose 3 books.       Log On


   

Question 1146056: Phil has 4 books to read but cannot take them all on vacation. Use Pascal’s triangle to find the number of ways he can choose 3 books.
Found 2 solutions by Boreal, ikleyn:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
1
1--2--1
1--3--3--1
1--4--6--4--1
0--1--2--3--4 books
There are 3 ways to choose them.

Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
.

The number of ways is  C%5B4%5D%5E3 = 4.