Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Standard Deviation
Calculate the standard deviation of ungrouped data of marks of students which are given below:
85, 65, 55, 42, 69, 83, 92, 77.
1
31.26
2
244.25
3
15.63
4
More than one of the above
5
None of the above