The following information was obtained from two investment companies A and B: Company A Company B Average return (000Rs) 28 37 Variance 25 36 No. of…
BBA Business Statistics · 2023 · Solved Question with Answer
The following information was obtained from two investment companies A and B:
| Company A | Company B | |
| Average return (000Rs) | 28 | 37 |
| Variance | 25 | 36 |
| No. of observations | 100 | 100 |
Calculate combined standard deviation.