Let A and B be two events such that p(A∪B)=61,p(A∩B)=41 and p(A)=41, where Astands for thecomplement of the event A. Then the events A and B are
Connecting you to a tutor in 60 seconds.
Get answers to your doubts.
Find the probability of getting more than 7 when two dice are rolled.
A real estate man has eight master keys to open several new homes. Only in master key will open any given house. If 40% of these homes are usually left unlocked, what is the probability that the real estate man can get into a specific home if he selects three master keys at random before leaving the office?
Find the probability that a leap year will have 53 Friday or 53 Saturdays.
On her vacations Veena visits four cities (A,B,CandD)in a random order. What is the probability that she visits(i) A before B?(ii) A before B and B before C?(iii) A first and B last?(iv) A either first or second?(v) A just be
The odds against a certain event are 5 to 2, and the odds in favor of another event independent of the former are 6 to 5. Find the chance that one at least of the events will happen.
An urn contains 6 white and 4 black balls. A fair die is rolled and that number of balls we chosen from the urn. Find the probability that the balls selected are white.
A fair coin is tossed four times, and people win Re 1 for each head and lose Rs 1.50 for each tail that turns up. From the sample space calculate how many different amounts of money you can have after four tosses and the probability' of having each of these amounts.
Two dice are thrown. The events A, B and C are as follows:A : getting an even number on the first die.B : getting an odd number on the first die.C : getting the sum of the numbers on the dice 5.Describe the events(i) Aprime (ii) not B(