##### Asked by: Xiuli Sauque

asked in category: General Last Updated: 1st May, 2020# How do you calculate grouped mean?

**calculate**the

**mean**of

**grouped**data, the first step is to determine the midpoint (also called a class mark) of each interval, or class. These midpoints must then be multiplied by the frequencies of the corresponding classes. The sum of the products divided by the total number of values will be the value of the

**mean**.

Also asked, what is mean in grouped data?

**Grouped Data Grouped data** are the **data** or scores that are arranged in a frequency distribution. 16. **Mean** The **mean** (also known as the arithmetic **mean**) is the most commonly used measure of central position. It is used to describe a set of **data** where the measures cluster or concentrate at a point.

Subsequently, question is, what is difference between grouped and ungrouped data? Both are useful forms of **data** but the **difference between** them is that **ungrouped data** is raw **data**. This means that it has just been collected but not sorted into any **group** or classes. On the other hand, **grouped data** is **data** that has been organized into groups from the raw **data**.

Beside this, what if there are two modes in grouped data?

In a set of **data**, the **mode** is the most frequently observed **data** value. **There** may be no **mode if** no value appears more than any other. **There** may also be **two modes** (bimodal), three **modes** (trimodal), or four or more **modes** (multimodal).

What does a standard deviation of 10% mean?

A: The **standard deviation** provides some idea about the distribution of scores around the **mean** (average). For example, with a **mean** score of 50 and **standard deviation of 10**, we would expect that most scores would fall between 40 and 60 and that nearly all scores would fall between 30 and 70.