Posted by Student on .
The colors red, orange, green, blue, indigo, and violet are written on slips of paper and placed in a hat. What is the probability that the slips will be chosen in the order of the colors of a rainbow (the order listed above)

ALGEBRA 
Reiny,
The colours can be arranged in 6! or 720 ways.
The above order is one of these.
So the prob of that particular order is 1/720 
ALGEBRA 
Student,
my book says 1/5040
could you tell me how to get it 
ALGEBRA 
msp,
I think you may have forgotten one of the colors...yellow. There are 7 colors in the rainbow, so it would be 7! or 7x6x5x4x3x2x1 which would give you 5040.

ALGEBRA 
Student,
youre my new bestfriend
thanks msp!