A student is taking a multiple choice exam. There are five possible answers for each question.
What is the probability the student will answer the first question correctly?
What is the probability that the student will answer the first question incorrectly?
If just guessing, the probability of answering correctly = .2, incorrectly = .8.
To calculate the probability of answering the first question correctly, we need to know the total number of possible answers and the number of correct answers.
In this case, we know that there are five possible answers for each question. However, we don't know how many of those answers are correct. To calculate the probability of answering the first question correctly, we need to know this information.
If we assume that each answer choice has an equal chance of being correct, then we can calculate the probability. In this case, the probability of selecting the correct answer out of five possible answers would be 1/5 or 0.2.
So, if each answer choice has an equal chance of being correct, the probability of answering the first question correctly would be 0.2.
To calculate the probability of answering the first question incorrectly, we can subtract the probability of answering it correctly from 1. Therefore, the probability of answering the first question incorrectly would be 1 - 0.2 = 0.8.
However, it's important to note that the assumption of equal probability for each answer choice may not always be true in real-life scenarios. If you have any additional information about the distribution of correct answers, you can use that information to calculate a more accurate probability in this case.