Greetings, data enthusiast! Today, we're diving into descriptive statistics using R. We'll explore measures of centrality — the mean, median, and mode — using R's built-in functionalities.
Central tendency finds a 'typical' value in a dataset. Our three components — the mean (average), median (mid-point), and mode (most frequently occurring) — each offer a unique perspective on centrality. The mean indicates average performance when decoding students' scores, while the median represents the performance of the middle student, and the mode illuminates the most common score.
This plot depicts the mean of a given dataset or its centered location, also considered the 'average'. Imagine a seesaw balanced at its center - the mean of a dataset is where it finds balance. As a crucial statistical concept, it visually expresses where most of our data is centered or skewed.

