EASY
JEE Advanced
IMPORTANT
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A pack of cards contains aces, kings, queens and jacks. Two cards are drawn at random from this pack without replacement. The probability that at least one of them will be an ace, is
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Important Questions on Fundamentals of Probability
EASY
JEE Advanced
IMPORTANT
Two cards are drawn successively with replacement from a well, shuffled deck of cards. the probability that both of these will be aces, is
EASY
JEE Advanced
IMPORTANT
A bag contains brown socks and white socks. A man selects two socks from the bag without replacement. The probability that the selected socks will be of the same colour, is
EASY
JEE Advanced
IMPORTANT
Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently, equals
EASY
JEE Advanced
IMPORTANT
Five persons entered the lift cabin on the ground floor of an floor house. Suppose that each of them independently and with equal probability can leave the cabin at any floor beginning with the first, then the probability of all persons leaving at different floors is
EASY
JEE Advanced
IMPORTANT
The chance of throwing a total of or or with two dice is
EASY
JEE Advanced
IMPORTANT
The probability that a teacher will give an unannounced test during any class meeting is . If a student is absent twice, then the probability that the student will miss at least one test, is
EASY
JEE Advanced
IMPORTANT
Given two events are and . If odds against are as and those in favour of are as , then
EASY
JEE Advanced
IMPORTANT
A six faced die is so biased that it is twice as likely to show an even number as an odd number when it is thrown. It is thrown twice. The probability that the sum of two numbers thrown even, is
