Understanding Data and Probability

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What are the types of data in statistics?

The primary types of data are categorical (nominal and ordinal) and numerical (interval and ratio).

What is probability in statistics?

Probability measures the likelihood that a particular event will occur, expressed as a number between 0 and 1.

What is the difference between a discrete and continuous variable?

Discrete variables have a finite number of distinct values, while continuous variables can take any value within a range.

What is statistical significance?

Statistical significance assesses whether results are likely due to chance or if there is a genuine effect.

What does a p-value represent in statistical analysis?

A p-value measures the probability of obtaining a result at least as extreme as the observed results, assuming that the null hypothesis is true.

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