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

Expert Teacher provides Maths 12 Science CBSE Probability Answers for MCQ 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:**

** Answer Video in** **English****:**

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

**Question 1** : Consider the experiment of tossing a coin. If the coin shows head, toss is done again, but if it shows tail, then throw a die. Find the conditional probability of the events that ' the die shows a number greater than 4', given that ' there is atleast one tail'. (View Answer Video)

**Question 2** : Three cards are drawn without replacement from a pack of 52 cards. Find the probability that the cards drawn are king, queen and jack respectively.

(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** : Find the mean, the variance and the standard deviation of the number of doublets in three throws of a pair of dice. (View Answer Video)

**Question 5** : Three cards are drawn without replacement from a pack of 52 cards. Find the probability that the cards drawn are king, queen and jack.

(View Answer Video)

**Question 1** : If area of a triangle is 35 sq unit with vertices (2, -6), (5, 4) and (k, 4), then k is, (View Answer Video)

**Question 2** : Which of the following is correct? (View Answer Video)

**Question 3** : Evaluate the determinants in :. (View Answer Video)

**Question 4** : Let A be a non-singular square matrix of order 3 * 3. Then | adj A | is equal to: (View Answer Video)

**Question 5** : Let A be the non- singular square matrix of order , then |adj A| is equal to, (View Answer Video)

**Question 1** : Find the unit vector in the direction of vector PQ, where P and Q are the points (1, 2, 3) and (4, 5, 6) respectively. (View Answer Video)

**Question 2** : Find the direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1), directed from A to B. (View Answer Video)

**Question 3** : Find the sum of the vectors : (View Answer Video)

**Question 4** : For given vectors,and find the unit vector in the direction of the vector a + b. (View Answer Video)

**Question 5** : Find the unit vector in the direction of if and (View Answer Video)

**Question 1** : Find for the function . (View Answer Video)

**Question 2** : Differentiate w.r.t.x the function , for some fixed a > 0 and x > 0. (View Answer Video)

**Question 3** : Differentiate w.r.t.x the function , for some constant a and b. (View Answer Video)

**Question 4** : Find for the function . (View Answer Video)

**Question 5** : Differentiate the function with respect to x. (View Answer Video)