a) \(\bar{s} = \frac{\sum_{i=1}^m (n_i-1) s_i^2}{\sum_{i=1}^m n_i}\)
b) \(\bar{s} = \left[\frac{\sum_{i=1}^m (n_i-1) s_i^2}{\sum_{i=1}^m n_i-m}\right]^2\)
c) \(\bar{s} = \left[\frac{\sum_{i=1}^m (n_i-1) s_i^2}{\sum_{i=1}^m n_i-m}\right]^{1/2}\)
d) \(\bar{s} = \frac{\sum_{i=1}^m (n_i-1) s_i^2}{\sum_{i=1}^m n_i-m}\)
Which one of these is correct to evaluate the mean standard deviation of the process samples?
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
Which one of these is correct to evaluate the mean standard deviation of the process samples?
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!