Dinesh Gunawardena was sworn in as Sri Lanka Prime Minister . Dinesh Gunawardena has held ministerial portfolios including Education, Foreign Affairs and Labour in different Rajapaksa governments, and was Leader of the House from January 2020 . Recently Six - time Prime Minister and Acting President Ranil Wickremesinghe was elected President of Sri Lanka amid an extraordinary political crisis set off by the island nation ’ s economic crash . This is the third unlikely elevation this year for Mr . Wickremesinghe, 73, who is the United National Party ’ s sole MP . About Sri Lanka Capitals : Colombo, Sri Jayawardenepura Kotte Currency : Sri Lankan rupee President : Ranil Wickremesinghe
Two random variables X and Y are said to be independent if:
The mean deviation from an average A will be minimum, if A represents:
Which of the following is NOT a type of data classification?
If A,B and C are arbitrary events, then P(A ∩ B ∩ C) equals to:
For the two variables X and Y, the following observations are tabulated
X:Â Â Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â...
If the random sample of size n is drawn without replacement from a finite population of size N, the correction factor for standard error of sample mean...
If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
Two data set of size 9 and 6 have standard deviation 3 and 4 respectively and arithmetic means 3 and 3 respectively. The standard deviation of combined...
With reference to index numbers, which of the following statements is true?
Marshall-Edgeworth Index number:
