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

Expert Teacher provides Probability CBSE Maths 12 Science 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:**

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

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**Question 1** : Three persons A, B and C apply for a job of Manager in a Private company. Chance of their selection (A, B and C) are in the ratio 1:2:4. The probability that A, B, and C can introduce changes to improve profits of company are 0.8, 0.5 and 0.3 respectively, if the changes does not take place, find the probability that is due to the appointment of C. (View Answer Video)

**Question 2** : Probability of solving specific problem independently by A and B are and respectively. If both try to solve the problem, independently, then find the probability that exactly one of them solves the problem. (View Answer Video)

**Question 3** : 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 4** : If the mean and variance of a Binomial distribution are 9 and 6 respectively, find the number of trails. (View Answer Video)

**Question 5** : 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 1** : The point on the curve which is nearest to the point (0, 5) is :

(View Answer Video)

**Question 2** : The line y=mx+1 is a tangent to the curve if the value of m is ________. (View Answer Video)

**Question 3** : The function f is a differentiable function and satisfies the functional equation f(x) + f(y) = f(x + y) – xy – 1for every pair x, y of real numbers. If f(1) = 1, then the number of integers n ≠ 1 for which f(n) = n is_______________. (View Answer Video)

**Question 4** : The maximum value of is (View Answer Video)

**Question 5** : Find the maximum value of in the interval [1,3]. find the maximum value of the same function in [-3,-1]. (View Answer Video)

**Question 1** : Find the distance between the point (-1, -5, -10) and the point of intersection of line and plane

x - y + z = 5. (View Answer Video)

**Question 2** : Find the equation of the plane passing through the point (-1, 3, 2) and perpendicular to each of the planes x + 2y + 3z = 5 and 3x + 3y + z = 0. (View Answer Video)

**Question 3** : The cartesian equation of a line is , write its vector form. (View Answer Video)

**Question 4** : Find the equation of plane passing through the line of intersection of the planes and and passing through the point (3, -2, -1). Also, find the angle between the two given planes. (View Answer Video)

**Question 5** : A plane makes intercepts -6, 3, 4 respectively on the co-ordinte axes. Find the length of the perpendicular from the origin on it. (View Answer Video)

**Question 1** : If then find the value of x. (View Answer Video)

**Question 2** : Write in the simplest form:

(View Answer Video)

**Question 3** : Solve for

(View Answer Video)

**Question 4** : Write in the simplest form:

(View Answer Video)

**Question 5** : Write in the simplest form. (View Answer Video)