Sentence examples for constant mean variance from inspiring English sources

A time series must be stationary, i.e., one which has a constant mean, variance, and autocorrelation function, in order for an ARIMA model to be applicable.

Since the t-statistic is a function of both the difference in means as well as the variance of a variable, given a constant mean, underestimating variance would lead to false positives, and overestimating variance would lead to false negatives.

Simple and ordinary kriging assume a constant mean and variance of the soil variable of interest.

Gauss: Gaussian white noise with constant mean and variance.

A stationary process has a constant mean and variance over time period of study.

Among some of these features are: (1) Gauss: Gaussian white noise with constant mean and variance.

For all ARIMA model (p,d,q) value of 'd' i.e., middle value is zero thus process is stationary and has constant mean and variance.

OLS yields best linear unbiased estimates (BLUE) on the assumption of independent identically distributed (iid) observations with constant mean and variance, if several important assumptions about the way in which the observations are generated are not violated [35].

We assumed that square root of hCG values followed a normal distribution with a constant mean and variance before conception.

For each cycle, we assumed that log(PdG) values follow a normal distribution with constant mean and variance before ovulation.

The GARCH modeling methodology is introduced to accommodate the possibility of serial correlation in volatility since the daily peak demand data exhibits non-constant mean and variance, and multiple seasonality corresponding to weekly and monthly periodicity.