Maths Probability CBSE 12 Science Solutions for MCQ in English to enable students to get Solutions in a narrative video format for the specific question.
Expert Teacher provides Maths Probability CBSE 12 Science Solutions for MCQ 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:
Solution Video in English:
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Question 1 : P speaks truth in 70% of the cases and Q in 80% of the cases. In what percent of cases are they likely to agree in stating the same fact? (View Answer Video)
Question 2 : 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 3 : If P(A)=, P(B)= and =, find . (View Answer Video)
Question 4 : A couple has 2 children. Find the probability that both are boys, if it is known that the older child is boy. (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)
Question 1 : The rate of change of the area of a circle with respect to its radius r at r=6cm is: (View Answer Video)
Question 2 : The slope of the normal to the curve at x = 0 is: (View Answer Video)
Question 3 : Find the maximum profit that a company can make if the profit function is. (View Answer Video)
Question 4 : For the curve, y= if x increases at the rate of 2 units/sec, then how fast is the slope of curve changing when x=3? (View Answer Video)
Question 5 : Find the maximum value of in the interval [1,3]. find the maximum value of the same function in [-3,-1]. (View Answer Video)
Question 1 : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)
Question 2 : 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 3 : Find the unit vector in the direction of the vector (View Answer Video)
Question 4 : Find the position vector of a point which divides the join of points with position vectors and externally in the ration 2:1. (View Answer Video)
Question 5 : Write a vector in the direction of the vector that has magnitude 9 units. (View Answer Video)
Question 1 : The solution of the following system of equation is 2x + 3y = 5, 5x – 2y = 3. (View Answer Video)
Question 2 : If a, b, c are in A.P., then the determinantis (View Answer Video)
Question 3 : If A is an invertible matrix of order 2, then is equal to, (View Answer Video)
Question 4 : Using the properties of determinants, evaluate . (View Answer Video)
Question 5 : If find |A|. (View Answer Video)