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.

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


If the mean and variance of a Binomial distribution are 9 and 6 respectively, find the number of trails.

Answer Video in English:

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

Question 1 : One card is drawn from a pack of 52 cards. Find the probability of getting a king   (View Answer Video)

Question 2 : In a hockey match, both teams A and B scored same number of goals up to the end of the game, so to decide the winner, the referee asked both the captains to throw a die alternately and decided that the team, whose captain gets a six first, will be declared the winner. If the captain of the team A was asked to start, find their respective probabilities of winning the match and state whether the decision of the referee was fair or not.      (View Answer Video)

Question 3 :  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)

Question 4 : A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of the number of successes and hence find its mean.  (View Answer Video)

Question 5 :  Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls. Two balls are transferred at random from Bag I to Bag II and then a ball is drawn from Bag II.  The ball so drawn is found to be red in colour. Find the probability that the transferred balls were both black.   (View Answer Video)

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

Inverse Trigonometric Functions

Question 1 : Write the value of  Question (View Answer Video)

Question 2 : Evaluate :
Question (View Answer Video)

Question 3 : Write  Question   in the simplest form. (View Answer Video)

Question 4 : If   Question  then find the value of x. (View Answer Video)

Question 5 : Solve for
 Question (View Answer Video)


Question 1 : Let A be a non-singular square matrix of order 3 * 3. Then | adj A | is equal to: (View Answer Video)

Question 2 : Evaluate the determinant: Question. (View Answer Video)

Question 3 :  Using the properties of determinants, evaluate Question. (View Answer Video)

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

Question 5 : If Question find |A|. (View Answer Video)

Differential Equations

Question 1 : Find the general solution of the following differential equation :
 Question (View Answer Video)

Question 2 : Write the sum of the order and degree of the differential equation  Question (View Answer Video)

Question 3 : If y(x) is a solution of the differential equation Question  and y(0) = 1, then find the value of Question (View Answer Video)

Question 4 : Find the particular solution of the differential equation :
Question  when x = 1, Question  (View Answer Video)

Question 5 : Write the degree of the differential equation : Question (View Answer Video)