In SRSWOR of size n from a population with N units if p is the proportion of sampled units having a given attribute, then unbiased estimate of V(p) is
When the collected data is grouped with reference to time, we have
Relationship between real wage and money wage is given by
Trace out the WRONG option from the following: (CLI= Cost of living index numbers)
The correlation coefficient between two variables X and Y is 0.4. The correlation coefficient between 2X and (Y) will be :