Probability MCQ CBSE Maths 12 Science Answers in English

Probability MCQ CBSE Maths 12 Science Answers in English to enable students to get Answers in a narrative video format for the specific question.

Expert Teacher provides Probability MCQ CBSE Maths 12 Science Answers through Video Answers in English language. This video solution will be useful for students to understand how to write an answer in exam in order to score more marks. This teacher uses a narrative style for a question from Probability not only to explain the proper method of answering question, but deriving right answer too.

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Question:

In a group of 30 scientists workings on an experiment, 20 never commit error in their work and are reporting results elaborately. Two scientists are selected at random from the group. Find the probability distribution of the number of selected scientists who never commit error in work and reporting. Also find the mean of the distribution. What values are described in this question?

Answer Video in English:

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Similar Questions from CBSE, 12th Science, Maths, Probability

Question 1 : An experiment succeeds thrice as often as it fails. Find the probability that in the next trials, there will be atleast 3 successes. (View Answer Video)

Question 2 : Out of a group of 30 honest people, 20 always speak the truth. Two persons are selected at random from the group. Find the probability distribution of the number of selected persons who speak the truth. Also find the mean of the distribution. What values are described in this question? (View Answer Video)

Question 3 : A bag X contains 4 white balls and 2 black balls, while another bag Y contains 3 white balls and 3 black balls. Two balls are drawn (without replacement) at random from one of the bags and were found to be one white and one black. Find the probability that the balls were drawn from bag Y. (View Answer Video)

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(View Answer Video)

Question 5 : A and B throw a pair of dice alternatively, till one of them gets a total of 10 and wins the game. Find their respective probabilities of winning, if A starts first. (View Answer Video)

Questions from Other Chapters of CBSE, 12th Science, Maths

Linear Programming

Question 1 : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)

Application of Derivatives

Question 1 : A cylindrical tank of radius 10 m is being filled with wheat at the rate of 314 cubic meters per hour. Then the depth of the wheat is increasing at the rate of: (View Answer Video)

Question 2 : Find two positive numbers whose sum is 16 and the sum of whose cubes is minimum. (View Answer Video)

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Question 5 : The rate of change of the area of a circle with respect to its radius r at r = 6 cm is : (View Answer Video)

Application of Integrals

Question 1 : Using integration, find the area of the region bounded by the curves and y = x. (View Answer Video)

Question 2 : Find the area of the region bounded by the curve and the line x = 3. (View Answer Video)

Question 3 : A farmer has a field of shape bounded by and x = 3, he wants to divide this into his two sons equally by a straight line x = c. Can you find c? What value, you find in the person ? (View Answer Video)

Question 4 : Using the method of integration, find the area of the region bounded by the lines 3x - y - 3 = 0, 2x + y - 12 = 0 and x -2y - 1 = 0. (View Answer Video)

Question 5 : Using integration find the area of the triangular region whose sides have the equations y = 2x + 1, y = 3x + 1 and x = 4. (View Answer Video)