Answer?

In answering a question on a multiple choice test for class XII, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assume that a student who guesses at the answer will be correct with probability 1/3. Let E_1, E_2 , E be the events that the student knows the answer, guesses the answer and answers correctly respectively. Based on the above information, answer the following What is the probability that the student knows the answer given that he answered it correctly?

In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability 1/3, what is the probability that the student knows the answer, given that he answered it correctly?

In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/4 be the probability that he knows the answer and 1/4 be the probability that he guesses. Assuming that a student who guesses at the answer with probability 1/4. what is the probability that the student knows the answer given that he answers correctly.?

In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability 1/3 , what is the probability that the student knows the answer given that he answered it correctly

In answering a question on a multiple choice test, a student either knows the answer or gusses. Let 3/4 be the probability that he knows the answer and 1/4 be the probability that he gusses. A ssuming that a student who gusses and the answer will be correct with probability 1/4 What is the probability that the studentthe answer given that he answered it correctly?

In answering a question on a multiple choice test for class XII, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assume that a student who guesses at the answer will be correct with probability 1/3. Let E_1, E_2 , E be the events that the student knows the answer, guesses the answer and answers correctly respectively. Based on the above information, answer the following Value of P(E | E_(1)) is

In answering a question on a multiple choice test for class XII, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assume that a student who guesses at the answer will be correct with probability 1/3. Let E_1, E_2 , E be the events that the student knows the answer, guesses the answer and answers correctly respectively. Based on the above information, answer the following Value of sum_(k=1)^(k=2)p(E_(k))

In answering a question on a multiple choice test for class XII, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assume that a student who guesses at the answer will be correct with probability 1/3. Let E_1, E_2 , E be the events that the student knows the answer, guesses the answer and answers correctly respectively. Based on the above information, answer the following What is the value of P( E_(1) )?

In an examination paper of five questions, 5% of the candidates answered all of them and 5% answered none. Of the rest, 25% candidates answered only one question and 20% answered 4 questions. If 396 candidates answered either 2 questions or 3 questions, the number of candidates that appeared for the examination was

There are four possible answers for each questions which are represented by (A), (B), (C ) and (D). Only one answer is correct out of these answer. Choose correct answer and write down the answer in English alphabet in the given box. If F rotates three times in clockwise direction at 45^(@) angle, then which figure will be formed ?