GUESS PAPER SET 3

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 probability that the student knows the 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 What is the value of P( E_(1) )?

Discussion OF Test Paper-3

Discussion OF Unit Test Paper - 3

Density of the material of a paper is given a 0.5 g cm^(-3) . The mass of the paper is 1 g and its length and breadth are 10 c and 5 cm, respectively. Arrange the following steps in a sequence to find the thickness of the paper. (A). The 0thickness of the paper is ("Volume of the paper (m)")/("Vlume of the paper (V)") (B) The density (d) of the material of the paper is =("Mass of the paper (m)")/("volume of the paper (V)") (C). then the volume (V) o the paper =("Mass of the paper (m)")/("Density (d) of the paper") (D). The volume (V) of the paper is=length xx breadth xx thickness of the paper.

Discussion OF Test Paper-1 ,2and 3

The probability of guessing the correct answer to a certain question is x . If probability of not guessing the correct answer is 2/3 , then find x.