If A and B are mutually exclusive, the general addition rule 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...
If each observation is halved then the coefficient of quartile deviation
Which option is incorrect?
If the second and third moment about the origin are 8 and 18 and the third moment about mean is -14 , then the first moment about the origin is:
If random variable X follows binomial distribution with parameter n and p with mean 15 and variance 10, then the value of mode is
The six decile (D6 ) of 5, 3, 2, 6, 8, 4 is:
