I have standard deviation for each 15 min of that hour so can i calculate the standard deviation of that hour using this 4 standard deviation values ?
Reason
Standard deviation of each 15 min is calculated by storing the per second reading coming from sensors and after the completion of the 15 min i calculate the SD of that 15 min slot and to calculate the whole hour SD i can not hold that per second reading that's why i need a way to calculate the SD using the each 15 min SD and same to calculate the SD of Day using the each hour SD
Edit last hour each 15 min SD
- 0.873
- 0.864
- 0.864
- 0.863