if there are 1- multiple questions on an exam, each having 3 possible answers, how many possibilities are thre in terms of the sequence of correct answers?
2007-01-20 18:46:52 · 6 answers · asked by Nicolette G 1 in Science & Mathematics ➔ Mathematics
1/27 would b the answer
cuz probability of getting first answer correct is 1/3
hence
1/3 *1/3*1/3=1/27
2007-01-20 18:53:39 · answer #1 · answered by n nitant 3 · 0⤊ 0⤋
1 out of 27
2007-01-21 03:08:00 · answer #2 · answered by Eliel S 3 · 0⤊ 0⤋
Maybe this will help.
10 questions with three answers each, call them A,B,C
Then what you're asking is how many sequences are there where there's a choice of three for each question and 10 questions.
AABBABCCBC is one such sequence.
In the terminolgy of combinatorics, you're choosing 10 times from a population of 3, with replacement, and order matters:
(1/3)^10
2007-01-21 03:39:18 · answer #3 · answered by modulo_function 7 · 0⤊ 0⤋
I assume you meant to say "10 multiple choice questions", judging by the "-" being next to the zero.
It would be 1/3^10, which works out to be 1/59049.
2007-01-21 02:58:25 · answer #4 · answered by Morphage 3 · 0⤊ 0⤋
1- multiple questions ?
2007-01-21 03:13:10 · answer #5 · answered by lia 1 · 0⤊ 0⤋
3^10.
3 ways for q1 and 3 ways for q2 and 3 ways for q4 ....
You can create a sequence of 10 tuples using a b or c.
2007-01-21 09:35:57 · answer #6 · answered by e_kueh 2 · 0⤊ 0⤋