- #1
Kuja
- 9
- 0
The question is as followed:
In how many ways can a student answer a true-false test that has six questions?
I tried nCr where n = 6 and r = 2
The result was 15, but at the back of the book it says 64!
I am wondering where the number 64 come from.
Thanks in advance!
In how many ways can a student answer a true-false test that has six questions?
I tried nCr where n = 6 and r = 2
The result was 15, but at the back of the book it says 64!
I am wondering where the number 64 come from.
Thanks in advance!