Probability MCQ CBSE Maths 12 Science Solutions in English

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

Expert Teacher provides Probability MCQ CBSE Maths 12 Science Solutions through Video Solutions 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 Solution in a narrative video format.

Question:

In a game, a man wins rupee five for number six and losses rupee one for any other number, when a fair die is thrown. The man decided to throw a die thrice but to quit as and when he gets a six. Find the expected value of the amount he wins/losses.

Solution Video in English:

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

Question 1 : Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement, then find the probability distribution of number of bad oranges drawn. Hence, find the mean and variance of the distribution.   

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?    

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.  

Question 4 : Find the mean, the variance and the standard deviation of the number of doublets in three throws of a pair of dice. 

Question 5 : A speaks truth in 75% of the cases, while B in 90% of the cases. In what percent of cases are they likely to contradict each other in stating the same fact? Do you think that statement of B is always true?    

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

Vector Algebra

Question 1 : Find the vector quantities : 
(i)     Work                     (ii)      Force
(iii)   Velocity                 (iv)     Displacement.  

Question 2 :  Find a vector Questionof magnitude Questionmaking an angle of Question with x-axis, Question with y-axis and an acute angle Questionwith z-axis. 

Question 3 : Find a vector in the direction of Questionthat has magnitude 7 units.  

Question 4 : Find the scalar and vector components of the vector with initial point (2, 1) and terminal point (-5, 7).

Question 5 :  P and Q are two points with position vectors Questionand Questionrespectively. Write the position vector of a point R which divides the line segment PQ externally in the ratio 2:1. 

Inverse Trigonometric Functions

Question 1 : Question is equal to :
 

Question 2 : If   Question  Find the values of x.

Question 3 : Write in the simplest form:
Question

Question 4 : If  Question find x.

Question 5 : Questionis equal to :

Continuity and Differentiability

Question 1 : Differentiate the function Question with respect to x.

Question 2 : If x and y are connected parametrically by the equation Question   , without eliminating the parameter, find Question.

Question 3 : Find Question for the function Question.

Question 4 : Differentiate the function Question with respect to x.

Question 5 : If x and y are connected parametrically by the equation Question   , without eliminating the parameter, find Question.