Data Analysis Review

Front

What is data analysis?

Back

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

Front

What is a frequency table?

Back

A frequency table is a way to organize data that shows how often each value occurs in a dataset.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two sets of data by displaying points for each data pair.

Front

What does it mean to compare data?

Back

To compare data means to look at two or more sets of information to find similarities, differences, or trends.

Front

What is a survey?

Back

A survey is a method of gathering information from individuals, often used to collect data about opinions, behaviors, or characteristics.

Front

What is the total number of students in a survey if 60 voted for a book and 170 voted for other options?

Back

The total number of students is 230.

Front

How do you find the mode in a set of data?

Back

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

Front

What is the median in a set of numbers?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the purpose of a bar graph?

Back

A bar graph is used to represent categorical data with rectangular bars, showing the frequency or value of each category.

Front

What does it mean to plot data?

Back

To plot data means to represent it visually on a graph or chart, making it easier to see patterns or trends.