CBSE Maths 12 Science Probability MCQ Answers in English

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

Expert Teacher provides CBSE Maths 12 Science Probability MCQ 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.

Please find the question below and view the Answer in a narrative video format.

Question:

A couple has 2 children. Find the probability that both are boys, if it is known that the older child is boy.

Answer Video in English:

You can select video Answers from other languages also. Please check Answers in ( Hindi )

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

Question 1 : A bag contains 3 red and 7 black balls. 2 balls are selected at random one by one without replacement. If the second selected ball happens to be red, what is the probability that the first selected ball is also red? (View Answer Video)

Question 2 : A bag I contains 5 red and 4 white balls and a bag II contains 3 red and 3 white balls. Two balls are transferred from the bag I to the bag II and then one ball is drawn from bag II. If the ball drawn from the bag II is red, then find the probability that one red ball and one white ball are transferred from the bag I to the bag II. (View Answer Video)

Question 3 : A couple has 2 children. Find the probability that both are boys, if it is known that one of them is a boy. (View Answer Video)

Question 4 : If E and F are independent events, then show that and are also independent. (View Answer Video)

Question 5 : A bag A contains 4 black and 6 red balls and bag B 7 black and 3 red balls. A die is thrown. If 1 or 2 appears on it, then bag A is chosen, otherwise bag B. It two balls are drawn at random (without replacement) from the selected bag, find the probability of one of them being red and another black. (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 : The radius of an air bubble is increasing at the rate of . At what rate is the volume of the bubble increasing when its radius is 1 cm? (View Answer Video)

Question 2 : Find the equation of the normal to a curve which passes through the point (1,2). (View Answer Video)

Question 3 : The points on the curve , where the normal to the curve makes equal intercepts with the axes are, (View Answer Video)

Question 4 : The point on the curve which is nearest to the point (0, 5) is (View Answer Video)

Question 5 : For all real values of x the minimum value of. (View Answer Video)

Determinant

Question 1 : Find the values of x, if. (View Answer Video)

Question 2 : Let A be square matrix of order 3 * 3, then |kA|is equal to (View Answer Video)

Question 3 : Which of the following is correct? (View Answer Video)

Question 4 : Evaluate the determinant: . (View Answer Video)

Question 5 : If=andis Cofactor of , then the value of is given by (View Answer Video)