NYSE stocks have either 1, 2, or 3 letter designations. Repetition is allowed. How many companies could there be on the NYSE?
THANKS
2007-05-06 08:21:37 · 6 answers · asked by wfky111 2 in Science & Mathematics ➔ Mathematics
26+ 26*26+26*26*26 = 18277
2007-05-06 08:32:27 · answer #1 · answered by a_ebnlhaitham 6 · 0⤊ 0⤋
At first glance one would think it is 26^3. However, you must account for one letter, two letters and three letters. That only applies if there are only 3 letter combination.
So make it 27^3 if all 3 spots had a letter or a zero for no letter.
now subtract for when zero is occupying two of the positions or one of the positions.
so - 27^2 and -27 and one more for all zeros -1
so 27^3 -27^2-27 -1 = 19683-189-27-1
= 19466
2007-05-06 08:35:08 · answer #2 · answered by ignoramus 7 · 0⤊ 0⤋
Its been awhile since I've taken statistics but it would be 26 + the combination of 26 2 + the combination of 26 3.
2007-05-06 08:31:37 · answer #3 · answered by eeb 3 · 0⤊ 0⤋
1 letter: 26 companies
2 letters: 26 for each letter, so 26x26=676
3 letters: 26^3=17576
Add them up to get:18278
2007-05-06 08:33:28 · answer #4 · answered by rowd149 2 · 0⤊ 0⤋
If your premise is correct, which I don't think it is,
(first letter a to z) * (second letter a to z +blank) * (third letter a to z + blank)
sooo.... (26) * (27) ^2 =?
2007-05-06 08:33:45 · answer #5 · answered by rhino9joe 5 · 0⤊ 0⤋
3.2.1=6
so 6 compines could be on the NYSE
2007-05-06 08:40:15 · answer #6 · answered by Anonymous · 0⤊ 0⤋