Question

what is statistics and what three method to find the mean of grouped data tell me with his formula​

Answer 1

Answer:

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set.

There are three methods for finding the mean from a grouped frequency table.

• Method 1: Direct method.
• Method 2: Assumed Mean method.
• Method 3: Step Deviation method.

Answer 2

Answer:

Hope it helps you pls mark this as Brainliest

Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. In other words, it is a mathematical discipline to collect, summarize data.