Median, Mean, Mode, Range from a Frequency Table

🎬 Video Tutorial

(0:50) Calculating the Mean from a Frequency Table: Multiply each value by its frequency, add these results, then divide by the total number of entries.
(1:27) Finding the Median with Frequency Table: Use the formula $\large \frac{N + 1}{2}$ to locate the median position in an ordered list. For example, if $N$ is 15, the median is the 8th value.
(2:27) Identifying the Mode in a Frequency Table: The mode is the value with the highest frequency.
(2:37) Calculating the Range: Subtract the smallest value from the largest value in the table.
(2:53) Effect of Outliers on Mean vs Median: Outliers can skew the mean, making it less representative, while the median is more stable and reflects the centre of the dataset reliably.