12 Science CBSE Maths Answers for MCQ Probability in English to enable students to get Answers in a narrative video format for the specific question.
Expert Teacher provides 12 Science CBSE Maths Answers for MCQ Probability 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 : If E and F are independent events, then show that and
(View Answer Video)
Question 2 : In a group of 400 people, 160 are smokers and non-vegetarian, 100 are smokers and vegetarian and the remaining are non-smokers and vegetarian. The probabilities of getting a special chest disease are 35%, 20% and 10% respectively. A person is chosen from the group at random and is found to be suffering from the disease. What is the probability that the selected person is a smoker and non-vegetarian? What value is reflected in this question? (View Answer Video)
Question 3 : 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. (View Answer Video)
Question 4 : 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? (View Answer Video)
Question 5 : One card is drawn from a pack of 52 cards. Find the probability of getting a jack of hearts:
(View Answer Video)
Question 1 : If then find x. (View Answer Video)
Question 2 : Solve for (View Answer Video)
Question 3 : is equal to :
(View Answer Video)
Question 4 : Solve for
(View Answer Video)
Question 5 : Write in the simplest form:
(View Answer Video)
Question 1 : Find the direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1) directed from B to A. (View Answer Video)
Question 2 : Find the value of x and y so that the vectors and are equal. (View Answer Video)
Question 3 : Evaluate the product (3a - 5b).(2a + 7b). (View Answer Video)
Question 4 : Find the scalar quantities from the following:
(i) Time period (ii) Distance (iii) Force
(iv) Velocity (v) Work done (View Answer Video)
Question 5 : For given vectors,and find the unit vector in the direction of the vector a + b. (View Answer Video)
Question 1 : Find the value of z, from the equation: . (View Answer Video)
Question 2 : Find the transpose of the matrix: . (View Answer Video)
Question 3 : Find the value of Y, if and . (View Answer Video)
Question 4 : If , then find "a". (View Answer Video)
Question 5 : Find the transpose of the matrix: . (View Answer Video)