Independent Events

IMPORTANT

Independent Events: Overview

This topic consists of various concepts like Independent and Dependent Events,,, etc.

Important Questions on Independent Events

HARD
IMPORTANT

Let   E c  denote the complement of an event E. Let E,F,G be pairwise independent events with  PG>0 and PEFG=0. Then  PEcFc|G equals 

EASY
IMPORTANT

Two fair dice are rolled. Let X be the event that the first die shows an even number and Y be the event that the second die shows an odd number. The two events X and Y are:

HARD
IMPORTANT

2 unbiased die are thrown independently. A is the event such that the number on the first die is greater than the number on the second die. B is the event such that the number on the first die is even and number on the second die is odd. C is the event such that first die shows odd number and second die shows even number, then

EASY
IMPORTANT

Events E and F are independent. Find PF, if PE=25 and PEF=35.

EASY
IMPORTANT

If A and B are two independent events such that PA¯=0.75,PAB=0.65, and PB=x, then find the value of x:

MEDIUM
IMPORTANT

Given that the events A and B are such that P(A)=12, P(AB)=35 and P(B)=p. Find p if the events are independent.

MEDIUM
IMPORTANT

Out of a pack of ten cards numbered 1 to 10, a boy draws a card at random and keeps it back. Then a girl draws a card at random from the same pack. If the boy's card reads m, and the girl's card reads n, then what is the probability that m>n, given that m is even?

EASY
IMPORTANT

On rolling a dice 6 times probability of event of obtaining even number and event of obtaining prime numbers are mutually independent or dependent?

EASY
IMPORTANT

If A and B are two independent events, then the probability of occurrence of at least one of A and B is given by 1-PA'PB'

MEDIUM
IMPORTANT

Prove that if E and F are independent events, then so are the events E and F'.

EASY
IMPORTANT

An unbiased die is thrown twice. Let the event A be 'odd number on the first throw' and B the event 'odd number on the second throw'. Check the independence of the events A and B.

EASY
IMPORTANT

A die is thrown. If E is the event 'the number appearing is a multiple of 3' and F be the event 'the number appearing is even' then find whether E and F are independent?

MEDIUM
IMPORTANT

If A and B are independent events such that PA=p, PB=2p and P(Exactly one of A and B)=59, then p=

EASY
IMPORTANT

For two events E and F, given that PE=13,PF=q and PEF=37. If E and F are independent events, then q is equal to

HARD
IMPORTANT

If E and F are independent events such that P(E)=13 and P(F)=16, then the probability that neither E nor F occurs is

HARD
IMPORTANT

A six-faced unbiased die is thrown until a number greater than 4 appears. The probability that this occurs on the n-th throw, where n is an even integer, is

MEDIUM
IMPORTANT

An event A is independent of itself if and only if PA is

EASY
IMPORTANT

If A and B be independent events with PA=13 and PB=27, then the value of PA/BC is

MEDIUM
IMPORTANT

If A and B are two independent events such that PA=310 and PAB=45, then PAB is equal to

EASY
IMPORTANT

Two fair dice are rolled. Let X be the event that the first die shows an even number and Y be the event that the second die shows an odd number. The two events X and Y are: