Step 1: Define the statistical terms.
- Arithmetic Mean (Average): The sum of all values divided by the number of values.
- Median: The middle value in a dataset that has been arranged in order of magnitude.
If there is an even number of observations, the median is the average of the two middle values.
- Mode: The value that appears most frequently in a dataset.
A dataset can have one mode (unimodal), more than one mode (bimodal, multimodal), or no mode if all values occur with the same frequency.
- Range: The difference between the highest and lowest values in a dataset.
It is a measure of dispersion, not central tendency.
Step 2: Match the definition with "most frequently observed value".
The definition of Mode is the value that occurs most frequently in a data set.
This matches option (3).