17 JEE Main 2020 Probability previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Probability chapter of Mathematics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Probability chapter hub.
Let A and B be two independent events such that P A = 1 3 and P B = 1 6 . Then, which of the following is true?
In a bombing attack, there is 50 % chance that a bomb will hit the target. At least two independent hits are required t…
A die is thrown two times and the sum of the scores appearing on the die is observed to be a multiple of 4 . Then the c…
The probability that a randomly chosen 5 - digit number is made from exactly two digits is :
The probabilities of three events A , B and C are given P A = 0 . 6 ,   P B = 0 . 4 and P C = 0 . 5 . If P A ͪ…
Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three…
Let A and B , be two events such that the probability that exactly one of them occurs is 2 5 , and the probability that…
If 10 different balls are to be placed in 4 distinct boxes at random, then the probability that two of these boxes cont…
In a workshop, there are five machines and the probability of any one of them to be out of service on a day is 1 4 . If…
In a box, there are 20 cards, out of which 10 are labelled as A and the remaining 10 are labelled as B . Cards are draw…
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