Box/Dot Plots

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.

Front

How do you find the median in a dot plot?

Back

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

Front

What does the mode represent in 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 is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of the data set, representing the 25th percentile.

Front

What is the third quartile (Q3)?

Back

The third quartile (Q3) is the median of the upper half of the data set, representing the 75th percentile.

Front

What is an interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1), measuring the spread of the middle 50% of the data.

Front

How do you determine if data is symmetrical?

Back

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

Front

What does it mean if two data sets have the same median?

Back

If two data sets have the same median, it means that the central value of both data sets is equal, but it does not indicate that the data sets are identical.