the probabitily would be 12/4! = 1/2... correct me if im wrong

I came to this a different way... The chance that ur buddy will sit beside u is (1/4) chance he sits on one side of you + (1/4) he sits on the other side.. giving you (1/4)+(1/4) = 1/2

Not sure if this way of thinking is correct tho, someone lemme know.. THanks!

o yah and order does NOT matter. A can be infront of B or B can be infront of A. When you talk about order you must look at if the order of the group that your selecting and see if that order matters. if this case they just need to be beside eachother, not in order.

o yah and order does NOT matter. A can be infront of B or B can be infront of A. When you talk about order you must look at if the order of the group that your selecting and see if that order matters. if this case they just need to be beside eachother, not in order.

Hmm not sure what you mean by that. Remember when order doesnt matter your gonna have more options then when order does matter. So you use the permutation to find out how many options there are for the two people to be together. (12). After that you look at how many total ways 4 people can be rearranged, which is 4! = 24. so if there are 24 ways 4 people can be arranged and 12 of those ways are with you and ur bud sitting beside eachother then you have 50% chance of sitting beside your bud!

At first your approach is wrong (1/4+1/4). You did not consider the number of people in the group. Just think that 5 people are in the group and you want two of them next to each other. The number of sequence 5!/3!=5*4=20. The total is 5!=120. The probability 20/120=1/6. It is not equal to 1/5+1/5=2/5.
I do not know any other formula to get an answer in one step!

At first your approach is wrong (1/4+1/4). You did not consider the number of people in the group. Just think that 5 people are in the group and you want two of them next to each other. The number of sequence 5!/2!=5*4=20. The total is 5!=120. The probability 20/120=1/6. It is not equal to 1/5+1/5=2/5.
I do not know any other formula to get an answer in one step!

but yah about the 1/4+1/4 thing i was just seeing if that train of thought is correct ( i know how to do it the normal way) but yah when u mix up the numbers i dont think its valid.

but yah about the 1/4+1/4 thing i was just seeing if that train of thought is correct ( i know how to do it the normal way) but yah when u mix up the numbers i dont think its valid.