Data Analysis Review

Front

What is the mean (average) in data analysis?

Back

The mean (average) is calculated by adding all the numbers in a data set and then dividing by the total number of values.

Front

How do you find the average of a set of numbers?

Back

Add all the numbers together and then divide by the count of numbers.

Front

What does it mean to analyze data?

Back

Analyzing data means examining and interpreting the information to find patterns, trends, or insights.

Front

What is a data set?

Back

A data set is a collection of related data points or values.

Front

What is the purpose of finding the mean in a data set?

Back

The purpose of finding the mean is to summarize the data with a single value that represents the center of the data.

Front

What is the difference between mean and median?

Back

The mean is the average of all values, while the median is the middle value when the data is arranged in order.

Front

What is a mode in data analysis?

Back

The mode is the value that appears most frequently in a data set.

Front

How can you represent data visually?

Back

Data can be represented visually using charts, graphs, and tables.

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars to show the frequency or amount of different categories.

Front

What is a line graph?

Back

A line graph is a visual representation of data that shows trends over time by connecting data points with lines.