Grouped data

Hello there little one! Today we are going to talk about grouped data. Have you ever counted objects or items? For example, have you ever counted how many apples you have in a basket? Well, imagine you have a lot of apples and you don't want to count them one by one. Instead, you want to group them in different piles based on their weight. This is what people do with data, they group them into different categories to make it easier to understand the information.

Grouped data is when we organize data into different categories or groups. Imagine a teacher wanted to know the grades of her students in a test. It would be easier to group the grades into categories, like A's, B's, C's, D's, and F's. This way, the teacher could see how many students got an A, how many got a B, and so on.

Another example is if we wanted to know how many people live in different cities. We would group the population of each city, like this:

- 0 - 10,000 people: 15 cities
- 10,001 - 50,000 people: 10 cities
- 50,001 - 100,000 people: 5 cities
- 100,001 - 500,000 people: 3 cities
- 500,001 - 1,000,000 people: 1 city

With this information, we can see how many cities have a certain population range.

In summary, grouped data is when we organize data into different categories or groups to make it easier to understand the information. It's like grouping apples based on their weight, or grouping test grades into categories like A's, B's, and so on.