Chi-square test A statistical method is used to find the difference or correlation between the observed and expected categorical variables in the dataset.
Example: A food delivery company wants to find the relationship between gender, location, and food choices of people.
It is used to determine whether the difference between 2 categorical variables is:
Due to chance or
Due to relationship
Analysis of Variance (ANOVA) is a statistical formula used to compare variances across the means (or average) of different groups. A range of scenarios uses it to determine if there is any difference between the means of different groups.
t_test is a statistical method for the comparison of the mean of the two groups of the normally distributed sample(s).
It comes in various types such as:
One sample t-test:
Used to compare the mean of a sample and the population.
Two sample t-tests:
Used to compare the mean of two independent samples and whether their population is statistically different.
Paired t-test:
Used to compare means of different samples from the same group.
