Examlex
What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of 40Ca?
Chi-squared Distribution
A statistical distribution showing how the sum of squared independent standard normal variables is distributed, often used in hypothesis testing.
Goodness-of-fit Test
A statistical test used to determine if sample data fits a distribution from a population with a normal distribution.
Contingency Table
A type of table used in statistics to summarize the relationship between several categorical variables, showing the frequencies at which certain combinations of variables occur.
Two-tail Test
A statistical test that determines if there are any significant differences between two population means or parameters, checking for deviations in two opposite directions from the null hypothesis.
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