399MathematicsMedium
If the standard deviation of a population is 9, the population variance is________?
A9
B3
C81
D21
Correct answer
C. 81
Explanation
The correct answer is 81.
Correct answer
C. 81
Explanation
The correct answer is 81.
Least square regression line always passes through ________?
Age of a shopkeeper is the example of________?
The critical value of a test statistic is determined from________?
Data in the Population Census Report is________?
Binomial distribution is symmetrical when P=________?
Sampling Error decrease by ________ the sample size?