1.10 Visualizing and Comparing Data Sets

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of data points plotted on a simple scale, often used to show frequency of data points in a dataset.

Front

What does 'mode' refer to in a data set?

Back

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

Front

How is 'mean' calculated?

Back

The mean is calculated by adding all the values in a data set and dividing by the number of values.

Front

What is 'median' in statistics?

Back

The median is the middle value in a data set when the values are arranged in ascending order.

Front

What does 'range' indicate in a data set?

Back

The range indicates the difference between the maximum and minimum values in a data set.

Front

What does it mean if a distribution is 'skewed'?

Back

A skewed distribution is one where the data points are not symmetrically distributed, causing one tail to be longer or fatter than the other.

Front

What is an 'outlier'?

Back

An outlier is a data point that differs significantly from other observations in a dataset.

Front

How do you determine the center of a skewed distribution?

Back

The center of a skewed distribution is best described using the median rather than the mean.

Front

What is the significance of the maximum value in a data set?

Back

The maximum value is the highest data point in a dataset, which helps to understand the upper limit of the data.

Front

What does it mean for data to be 'approximately symmetrical'?

Back

Data is approximately symmetrical when the left and right sides of the distribution are mirror images of each other.