Shape of Distribution

Front

What is the main difference between a bar chart and a histogram?

Back

A bar chart is based on categorical data, while a histogram is based on quantitative data.

Front

What does it mean if a distribution is skewed to the left?

Back

It means that the left tail of the distribution is longer or fatter than the right tail, indicating that there are a larger number of lower values.

Front

What is an outlier in a data set?

Back

An outlier is a value that is much higher or much lower than the other values in a set of data.

Front

What is the purpose of a box plot?

Back

A box plot visually summarizes the distribution of a data set by displaying its median, quartiles, and potential outliers.

Front

What does it mean for a distribution to be symmetrical?

Back

A symmetrical distribution has a balanced shape, where the left and right sides are mirror images of each other.

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 are the key components of a histogram?

Back

The key components of a histogram include the bars (representing frequency), the intervals (bins), and the axes (labeled with values and frequency).

Front

What does it indicate if a distribution has a higher maximum value?

Back

A higher maximum value indicates that there is at least one data point that is significantly larger than the rest of the data.

Front

What is the median of a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What does it mean if a distribution is skewed to the right?

Back

It means that the right tail of the distribution is longer or fatter than the left tail, indicating that there are a larger number of higher values.