MCQ in English Answers for CBSE Maths 12 Science Probability

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

Expert Teacher provides MCQ Answers for CBSE Maths 12 Science 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:

 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?    

Answer Video in English:

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

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

Question 1 : In a school, there are 1,000 students, out of which 380 are girls. Out of 380 girls, 10% of the girls scored highest in GS. What is the probability that a student chosen randomly scored highest in GS given that the chosen student is a girl?  (View Answer Video)

Question 2 : A coin is biased so that the heads is 2 times as likely to occur as tail. If the coin is tossed twice, find the probability distribution of number of tails. Hence find the mean of the distribution.  (View Answer Video)

Question 3 : If E and F be two evets such that QuestionQuestion, find Questionif E and F are independent events. (View Answer Video)

Question 4 : 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 5 : How many times must a man toss a fair coin, so that the probability of having at least one head is more than 80%.  (View Answer Video)

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

Vector Algebra

Question 1 :  If Question and Question are two equal vectors, then write the value of Question  (View Answer Video)

Question 2 : Find |x|, if for a unit vector a,(x - a).(x + a) = 12. (View Answer Video)

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

Question 4 : Compute the magnitude of the following vectors:
QuestionQuestion (View Answer Video)

Question 5 : Find Question if the vectors Question and Question are coplanar.   (View Answer Video)

Three Dimensional Geometry

Question 1 : Find the angle between the lines whose direction ratios are a, b, c and b - c, c - a, a - b. (View Answer Video)

Question 2 : Write the equation of the straight line through the point Questionand parallel to z-axis. (View Answer Video)

Question 3 : Find the angle between the lines  Questionand Question (View Answer Video)

Question 4 : Find the distance of the point (-1, -5, -10) from the point of intersection of the line  Question  and the plane Question (View Answer Video)

Question 5 : Find the distance of the plane : 3x - 4y + 12z = 3 from the origin. (View Answer Video)

Application of Integrals

Question 1 : Find the area of the region bounded by the parabola Question and y = | x |. (View Answer Video)

Question 2 : Using integration, find the area of the region bounded by the triangle whose vertices are (-1, 2), (1, 5) and (3, 4). (View Answer Video)

Question 3 : Using the method of integration, find the area of the triangular region whose vertices are (2, -2), (4, 3) and (1, 2). (View Answer Video)

Question 4 : Using the method of integration, find the area of the region bounded by the lines 3x - y - 3 = 0, 2x + y - 12 = 0 and x -2y - 1 = 0. (View Answer Video)

Question 5 : Find the area of the smaller region bounded by the ellipse Question and the line Question (View Answer Video)