Question

Plsss help!!
to win the world series a baseball team must win 4 games out of a maximum of 7 games. to solve the problem list the possible arrangements of losses to wins. How many ways are there of winning the world series in exctly 7 games if the winning team wins the first game

Answer 1

It's important to note 2 things: first, the winning team wins the first game... And, second, the winning team must win game 7 (otherwise, it doesn't fit the constraints!!)

Answer 2

So, how many permutations exist where the first game is a W and the last game is a W?
Basically, we need to find the number of ways to arrange 2 W's and 3 L's in the middle 5 games!!!

Answer 3

Or, figure out how many places you can put the two W's in 5 games... 20? Correct?

Answer 4

Actually, since it's a combination --- 20/2 or, 10

Answer 5

Thank you