Introduction
A histogram helps you see how often numbers appear in groups. Frequency analysis counts how many times values fall into these groups. This makes it easy to understand patterns in your data, like test scores or sales amounts.
When you want to see how many students scored within certain grade ranges in a test
When you need to analyze sales amounts grouped by price ranges
When you want to understand the distribution of ages in a survey
When you want to check how often different temperature ranges occur in weather data
When you want to summarize how many products fall into different weight categories