Assume the questions each have 5 choices for the answers. Only 1 correct answer per question.
2007-02-12 02:45:08 · 6 answers · asked by km 1 in Education & Reference ➔ Homework Help
1 in 5 for both questions when taken together give you a 1 in 25 chance (probability 0.04). This assumes that the correct answers are randomly assigned choices.
In the real world the test may be constructed in such a way as to skew this. For instance it may be set out that no adjacent 'E' choices ever both contain the correct answer. This would lower the chance to 1 in 20 (probability 0.05).
2007-02-12 02:55:22 · answer #1 · answered by Dharma Nature 7 · 0⤊ 0⤋
The probability of answering BOTH problems correbtly is 1 divided by N squared (where N is the number of choices in your question).
For example if you only have two choices for each question, as in a true/false the probablility of answering BOTH correctly would be 1 out of 4 (1/4, or .25 in decimal form)
If your had 5 choices for each multiple choice question then the answer would be 1/25 chance of getting BOTH right 1/25 = .04 in decimal form.
2007-02-12 03:06:50 · answer #2 · answered by Stanley D 2 · 0⤊ 0⤋
1 out of 5 or 2 out of 10 either way you only have a 20% chance of guessing correctly on both
2007-02-12 02:53:49 · answer #3 · answered by juggalette162006 2 · 0⤊ 0⤋
Assuming that you know a little about the
subject, eliminate the answer you know to be
incorrect. Now you have just raised your chances
from 20 percent to 25 percent. Now go from
there.
2007-02-12 02:56:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋
1 out of 5 or 1/5th per question.
2007-02-12 02:54:15 · answer #5 · answered by Precious Gem 7 · 0⤊ 0⤋
I think one in twentyfive.
2007-02-12 02:48:35 · answer #6 · answered by Anonymous · 0⤊ 0⤋