Probability MCQ CBSE Maths 12 Science Solutions in English

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

Question 1 : An insurance company insured 2,000 cyclists, 4,000 scooter drivers and 6,000 motorbike drivers. The probability of an accident involving a cyclist, scooter driver and a motorbike driver are 0.01, 0.03, and 0.15 respectively. One of the insured persons meets with an accident. What is the probability that he is a scooter driver?     (View Answer Video)

Question 2 :  A card from a pack of 52 playing card is lost. From the remaining cards of the pack, three cards are drawn at random (without replacement) and are found to be all spades. Find the probability of the lost card being a spade.   (View Answer Video)

Question 3 : Evaluate , if 2P(A)=P(B)= and =. (View Answer Video)

Question 4 : 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)

Question 5 : A bag A contains 4 black and 6 red balls and bag B 7 black and 3 red balls. A die is thrown. If 1 or 2 appears on it, then bag A is chosen, otherwise bag B. It two balls are drawn at random (without replacement) from the selected bag, find the probability of one of them being red and another black.        (View Answer Video)

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

Determinant

Question 1 :  Find the area of the triangle with vertices at the points (-2, -3), (3, 2), (-1, -8). (View Answer Video)

Question 2 : Which of the following is correct? (View Answer Video)

Question 3 : Transpose of a rectangular matrix is a, (View Answer Video)

Question 4 :  Evaluate the determinants:. (View Answer Video)

Question 5 : Evaluate . (View Answer Video)

Three Dimensional Geometry

Question 1 : Find the angle between the planes 7x + 2y + 6z = 15 and 3x - y + 10z = 17. (View Answer Video)

Question 2 : If a line has the direction ratios -18, 12, -4, then what are its direction cosines? (View Answer Video)

Question 3 : 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 4 : Find the distance of the point (1, -2, 3) from the plane x-y+z=5 measured parallel to the line (View Answer Video)

Question 5 : 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)

Application of Derivatives

Question 1 : On which of the following intervals in the function  strictly decreasing? (View Answer Video)

Question 2 : The approximate change in the volume of a cube of side x meters caused by increasing the side by 3% is, (View Answer Video)

Question 3 : The normal to the curve  passing (1, 2) is: (View Answer Video)

Question 4 : A stone is dropped into a quiet lake and waves move in circles at a speed of 4 cm per second. At the instant when the radius of the circular waves is 10 cm, how fast is the enclosed area increasing? (View Answer Video)

Question 5 : The normal  to the curve  passing (1,2) is____________. (View Answer Video)