Appendix A.7
Grouped Data Standard Deviation Calculator
Calculate the standard deviation from a frequency distribution table.
InteractiveGrouped Data Standard Deviation Calculator
Sample Standard Deviation Formula:
| Lower | Upper | Actions | |||||
|---|---|---|---|---|---|---|---|
| 14.5 | -11.20 | 125.44 | 627.20 | ||||
| 24.5 | -1.20 | 1.44 | 17.28 | ||||
| 34.5 | 8.80 | 77.44 | 619.52 | ||||
| Totals | n = 25 | 1264.0000 | |||||
Estimated Mean ()
25.7000
Variance ()
52.6667
Std Deviation ()
7.2572
Calculation: