Timeline for Combining two means and SDs of one group
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 30, 2018 at 6:48 | comment | added | eSurfsnake | Take the 84 data points and ignore the time. calculate the mean and SD for the 84 combined. Let me assume, for example, you want average weight and height (perhaps to calculate average BMI and its SD?) based on these two groups given weight and height. Treat them as one group and get the average weigh, and average height, over the 84 +/- 2 or 3 difference in count. | |
| Dec 30, 2018 at 6:37 | vote | accept | Mohamed Gomaa Kamel | ||
| Dec 30, 2018 at 6:37 | |||||
| Dec 30, 2018 at 6:36 | comment | added | Mohamed Gomaa Kamel | Thanks for your kind comment, Yes, it will not affect (not a big difference in time) So, how to pool them, please? | |
| Dec 30, 2018 at 6:27 | history | answered | eSurfsnake | CC BY-SA 4.0 |