Question
An unbiased coin is tossed until a head appears. The
expected number of tosses required isSolution
Let X denote the number of tails tossed before the head appears. Then X is a geometric random variable. P(head) = 1 / 2 and the expectation is E(X)=1 / (1/2) = 2.
On the basis of the source of origin, the rivers of Uttar Pradesh are divided into ............... .
The former Prime Minister of which country died on 8th July, 2022 as he was shot from a gun while participating in an election campaign?
Which mild base is used for relief after being stung by a honey bee?
When is ‘National Legal Services Day’ Observed?
_______ launched ‘India ki Udaan’ as a part of Azadi ka Amrit Mahotsav and to mark the 75 years of Independence.
When is the ‘World Red Cross Day’ celebrated ?
In the year 2022, India and Israel mark the ____ years of friendship of diplomatic ties.
Recently, who has won the seat in Julana assembly from Haryana ?
____ state has won the UN-Habitat’s World Habitat Awards 2023 for Jaga Mission?
Alexander invaded India in:
