I regret that I do not have access to a study that looked at this matter and so do not have any experimental evidence.
There is 1 right answer out of 5 possible answers, so the probability of guessing it correctly is 1/5 or 20% or 0.2.
6 to 1. (That is, 6 incorrect to 1 correct.) This is equaivalent to a probability of 1/7 or a 14% chance of guessing the correct answer.
You have a 4 percent chance of guessing both answers correctly assuming there is only one correct answer to each question and that you may only answer once per question.
The probability will depend on how much you know and the extent of guessing.
7 to 1
There is 1 right answer out of 5 possible answers, so the probability of guessing it correctly is 1/5 or 20% or 0.2.
6 to 1. (That is, 6 incorrect to 1 correct.) This is equaivalent to a probability of 1/7 or a 14% chance of guessing the correct answer.
See excellent related answers below.
You have a 4 percent chance of guessing both answers correctly assuming there is only one correct answer to each question and that you may only answer once per question.
The probability will depend on how much you know and the extent of guessing.
7 to 1
7:1
True. When there are only two answers, so guessing should give you a 50% or 1 out of 2 chance of getting the right answer.
Since there are 4 choices the probability of guessing any given answer correctly is 1/4 or .25; call this a success and denote it by p The chance of guessing wrong is .75; call this a failure and denote it by q. So the chance of 3 out of 5 correct answers is 5C3xp^3q^(5-3)=10p^3q^2 5C3x(.25)^3(.75)^2 5x4x3/3x2(.15625)(.5625) 10(.12625)(.5625)=.0877891
Each series of experiments is likely to give a slightly different answers. You will need to conduct the experiment and countthe number of times you got a 6 (= n6); andthe total number of times the experiment was conducted (= N).Then, the required probability is (N - n6)/N. As you increase N, the experimental probability will become more accurate.
There are many different types of mathematical experiments in math, but the most easy one I can think of would be the Experimental Probability. Example: Flipping a coin and recording your answers to see the actual probability of landing on heads or tails.
To answer this, the total number of questions on the test would need to be known.