Sentence examples for variance unknown from inspiring English sources

Results: The heterogeneity of trial designs and the use of different comparators necessitated a Bayesian hierarchical meta-analysis with three models: (a) random trial effect and fixed treatment effects, (b) random trial and treatment effects, (c) random trial and treatment effects with trial variance unknown.

Another key assumption is that the true variance (unknown) within each individual is constant.

Now, consider the normal distribution (2) but with both mean and variance unknown.

However, the variance is unknown because N is unknown.

However, the variance is unknown and is represented by ({sigma ^{2}_{b}} ) for both cases.

For most diseases and outcomes, a considerable component of the prognostic variance remains unknown, and may remain so for the foreseeable future.

t test based on t-distribution is used when population is normal and infinite, population variance is unknown and sample size is small (n < 30).

First, we solve the spatial formulation for parameter estimation by SABMP for on-grid targets assuming that the number of targets and noise variance are unknown.

It is shown that SABMP provides the best estimates for parameter estimation at high SNR even when the number of targets and noise variance are unknown.

In this paper, a more general noisy environment is considered where it is assumed that the noise variance is unknown and noise-only data is not available.

Since the noise is assumed as a zero-mean white-Gaussian process and its variance is unknown, (15) will be replaced by the following log-likelihood function: (17).