Data Analysis 7.12A

Front

What is data analysis?

Back

Data analysis is the process of inspecting, cleaning, transforming, and modeling data to discover useful information, inform conclusions, and support decision-making.

Front

What is a dataset?

Back

A dataset is a collection of related data that is usually presented in a table format, where each row represents a record and each column represents a variable.

Front

What is the mean in data analysis?

Back

The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

What is the median?

Back

The median is the middle value in a dataset when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode?

Back

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

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to compare different categories.

Front

What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments.

Front

What is a pie chart?

Back

A pie chart is a circular statistical graphic that is divided into slices to illustrate numerical proportions.

Front

What is a variable in data analysis?

Back

A variable is any characteristic, number, or quantity that can be measured or counted. Variables can be classified as independent or dependent.

Front

What is a correlation?

Back

Correlation is a statistical measure that describes the extent to which two variables change together. A positive correlation means that as one variable increases, the other also increases.