probability of a given b formula

If A and B are any two events, the..

Sometimes a circle is used to represent a given data. The various parts of it are proportionally represented by sectors of the circle. Then the graph is called a Pie Graph or Pie Cha..

In a housing colony 70% of the houses are well planned and 60% of the houses are well planned and well built. Find the probability that an arbitrarily chosen house in this colony is well built given that it is well planne..

If we are given the number of persons, number of jobs and the expected productivity of a particular person on a particular job, linear programming is used to maximise the average productivity of a perso..

If A and B are independent, then i) A c and B c are independent ii) A c and B are independent iii) A and B c are independ..

The different arrangements that can be made with a given number of things taking some or all of them at a time are called permutations. The symbol n P r or P(n,r) is used to denote the number of permutations of n things taken r at a tim..

Question: A person fires 50 times at a target and hits the target 30 times. When he fires the next time at the target. What is the probability that he hits the target? Answer: The probability of hitting the target..

Question: Find the mode of : 43, 42, 44, 40, 48, 45, 40, 40 Answer: 40, 40, 40, 42, 43, 44, 45, 48 Since 40 is the most repeated score, Mode = 4..

Question: The Median of the first 10 multiples of five. Answer: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 Median = Middle-most score ..

Consider the experiment of throwing a die. 2) Compound Event: If an event has more than one sample points, the event is called a compound event . In the above example, of throwing a die, {1, 4} is a compound event. 3) Null Event ( f ): As null set is a subset of S, it is also an event called..