Probability CBSE Maths 12 Science MCQ Answers in English

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

Question 1 : One card is drawn from a pack of 52 cards. Find the probability of getting a black face card: (View Answer Video)

Question 2 : A problem in mathematics is given to 4 students A, B, C, D. Their chances of solving the problem, respectively, are   and . What is the probability that atmost one of them solve the problem?  (View Answer Video)

Question 3 : 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)

Question 4 : A couple has 2 children. Find the probability that both are boys, if it is known that one of them is a boy.  (View Answer Video)

Question 5 : 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)

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

Inverse Trigonometric Functions

Question 1 : Write in the simplest form:
(View Answer Video)

Question 2 : Solve for
(View Answer Video)

Question 3 : Write the principal value of   (View Answer Video)

Question 4 : If  then find x. (View Answer Video)

Question 5 : Write in the simplest form:
(View Answer Video)

Application of Integrals

Question 1 : Find the area of the region bounded by the curves and x = 3. (View Answer Video)

Question 2 : Find the area of the circle which is interior to the parabola  (View Answer Video)

Question 3 : Using integration, find the area of the  co-ordinates whose vertices are P(2,0), Q(4, 5) and R(6,3). (View Answer Video)

Question 4 : Using integration find the area of the triangular region whose sides have the equations y = 2x + 1, y = 3x + 1 and x = 4. (View Answer Video)

Question 5 : Find the area bounded by the curve y = sin x between x = 0 and  (View Answer Video)

Application of Derivatives

Question 1 : The function f is a differentiable function and satisfies the functional equation f(x) + f(y) = f(x + y) – xy – 1for every pair x, y of real numbers. If f(1) = 1, then the number of integers n ≠ 1 for which f(n) = n is_______________. (View Answer Video)

Question 2 : A tank with a rectangular base and rectangular sides, open at the top is to be constructed so that its depth is 2m and volume is If the building of tank costs Rs.70 per sq meter for the base and Rs.45 per sq meter for sides. What is the cost of least expensive? (View Answer Video)

Question 3 : The line  is a tangent to the curve  at the point. (View Answer Video)

Question 4 : The slope of the tangent to the curve:

at the point (2, -1) is: (View Answer Video)

Question 5 : The slope of the tangent to the curve  at the point (2, -1) is : (View Answer Video)