Examlex
The anthrax attack of fall 2001 was accomplished by mailing the agent in ordinary envelopes. This method of delivery took advantage of the ability of Bacillus anthracis to produce (aerosols/endospores/spores).
Independent Variables
Variables in an analysis that are manipulated or categorized to observe their effect on the dependent variable.
T-distribution
A probability distribution that arises when estimating the mean of a normally distributed population in situations where the sample size is small and the population standard deviation is unknown.
Regression Coefficients
Values that represent the amount of change in the dependent variable for a one-unit change in an independent variable in a regression analysis.
Stepwise Regression
A method of regression analysis in which the choice of predictive variables is carried out by an automatic procedure, often involving the selection of variables based on statistical criteria.
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