If you have 8 balls and 4 are yellow and 4 are red, how many ways can you line them up so that no two yellow or no two red balls are touching?
I only get 2…
ABABABAB
BABABABA
What am I missing??
Apparently, 2 is not the answer.
Hi @livewithnature,
Let me start this reply of mine with a Disclaimer: I haven’t taken Saylor.org Academy’s “MA121: Introduction to Statistics” course yet and I also don’t work at / for Saylor.
Assuming the balls are indistinguishable, I agree with you when you say:
" If you have 8 balls and 4 are yellow and 4 are red, how many ways can you line them up so that no two yellow or no two red balls are touching?
I only get 2…
ABABABAB
BABABABA "
Where exactly, in the MA121 course, did you find this problem? Could you copy and paste the exact text of the question to a new reply in this same discussion thread / topic?
The answer is 4…
ABABABAB
BABABABA
AB
AB
AB
AB
BA
BA
BA
BA
hmm interesting so the the 4 yell i will label y and 4red will be r
yryryr
ryryry