Bar graph is a graphical representation of the frequency distribution or relative frequency distribution when dealing with qualitative data.

Binomial distribution function is a probability distribution representing a dichotomous binary variable.

Box plot is a visual representation of several basic descriptive statistics in a concise manner.

Categorical variable is another name for a qualitative variable.

Center of gravity of the data is the same as the expected value, or mean.

Central Limit Theorem states that in repeated random samples from a population, the sample mean will have a distribution function approximated by normal distribution, the expected value of the sample mean is equal to the true value of the population mean, and ...

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