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, where each dot represents one data point.

Front

What does the median represent in a data set?

Back

The median is the middle value of a data set when it is ordered from least to greatest. It divides the data into two equal halves.

Front

How do you find the mode of a data set?

Back

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

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 does it mean if a distribution is skewed?

Back

A skewed distribution is one where the data points are not symmetrically distributed around the mean, causing the mean to be pulled in the direction of the skew.

Front

When is the median a better measure of center than the mean?

Back

The median is a better measure of center when the data set contains outliers or is skewed.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data represents numerical values (e.g., height, weight).

Front

What is a symmetrical distribution?

Back

A symmetrical distribution is one where the left and right sides of the distribution are mirror images of each other.

Front

How can you compare two data sets visually?

Back

You can compare two data sets visually using dot plots, box plots, or histograms to observe differences in central tendency and variability.

Front

What is an outlier?

Back

An outlier is a data point that is significantly different from the other data points in a data set.