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

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

** If E and F are independent events, then show that and
**

** Solution Video in** **English****:**

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

**Question 1** : A and B throw a pair of dice alternately. A wins the game if he gets a total of 9 and B wins if he gets a total of 7. If A starts the game, find the probability of winning the game by B. (View Answer Video)

**Question 2** : Four cards are drawn successively with replacement from a well shuffled deck of 52 cards. What is the probability that:

All the four cards are spades?

(View Answer Video)

**Question 3** : A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, 20, 16, 18, 20, 17, 16, 19 and 20 years. One student is selected in such a manner that each has the same chance of being chosen and the age X of the selected student is recorded. What is the probability of the random variable X? Find the mean. (View Answer Video)

**Question 4** : If P(A)=0.8, P(B)=0.5 and =0.4, find . (View Answer Video)

**Question 5** : 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 1** : Find the maximum profit that a company can make if the profit function is. (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 total cost C(x) (in Rs) associated with the production of 'x' units of an item is given by :

C (x)=0.005x^{3}-0.02x^{2}+30x+5000.

Find the marginal cost when 3 units are produced, where by marginal cost we mean the instantaneous rate of change of total cost at any level of output. (View Answer Video)

**Question 4** : If , then the approximate value of f (3.02) is (View Answer Video)

**Question 5** : Find two numbers whose sum is 24 and whose product is as large as possible. (View Answer Video)

**Question 1** : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)

**Question 1** : Let Find BA. (View Answer Video)

**Question 2** : Compute: . (View Answer Video)

**Question 3** : Find the value of x from the equation: . (View Answer Video)

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

**Question 5** : Let Find 3A - C. (View Answer Video)