Whenever an issue or a dispute is solved, we say it is resolved.
Two random variables X and Y are said to be independent if:
X and Y are independent normal variables with mean 50 and 80 respectively and standard deviation as 4 and 3 respectively. What is the distribution o...
If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
The following observations 14, 19, 17, 20, 25 constitute a random sample from an unknown population with mean u and standard deviation σ.
The...
Which of the following correctly completes the given statement?
Index number helps in:
(I) determining the cost of living
(II) ...
If Z1, Z2,…Zn are n independent standard normal variates, then Σni=1 Z2i will follow:
For frequency distribution presentation , which option is wrong.
The curve obtained by joining the points, whose x-coordinates are the upper limits of the class interval and y-coordinates are corresponding cumulative...
For a normal distribution, which of the following is true?