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.
What, according to the passage was the reason behind less interest in the recent 500 MW power tender?
What are the positive impacts that tourism would bring to the economy of a developing nation?
(i) a halt in construction and allied activities...
Who is at the top of the aquatic food web?
What caused the damage in the author’s house?
Replace the word given in bold with another suitable option, without changing the meaning of the sentence.
The lack of doctors, coupled with a...
Why were all the judges who revolted, were upset with the CJI?
What is the ‘Undead limb’ being referred to?
What is the result of the fusion of the new labor force survey and the recommendations obtained from the task force set up by NitiAyog?
Which of the following words is most opposite to the word ‘unparalleled’ as mentioned in the passage?
Which of the following is definitely not true according to the passage?
