Understanding Data Representations

Front

What is a dot plot?

Back

A dot plot is a simple visual representation of data where each data point is shown as a dot above a number line. It helps to display the frequency of data points.

Front

What shape represents a symmetric data distribution?

Back

A bell-shaped curve represents a symmetric data distribution, indicating that most data points cluster around the mean.

Front

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

Back

To find the median, arrange the numbers in order and identify the middle value. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the difference between categorical and numerical data?

Back

Categorical data represents categories or groups (e.g., colors, names), while numerical data represents measurable quantities (e.g., height, weight).

Front

What is a bar chart?

Back

A bar chart is a visual representation of data using bars of different heights to compare quantities across categories.

Front

What does it mean for data to be skewed?

Back

Skewed data is not symmetrical and has a tail on one side. If the tail is on the left, it's skewed left; if on the right, it's skewed right.

Front

What is the mode of a set of numbers?

Back

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

Front

What is a line graph used for?

Back

A line graph is used to display data points over time, showing trends and changes in values.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is a pie chart?

Back

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