Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Mathematics Statistics Variance and Standard Deviation
A simple random sample consists of three observations 1, 3, 5. The point estimate of the population standard deviation is :
1
2.5
2
3
3
2
4
More than one of the above
5
None of the above