Dot plots and Box plots

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points. Each dot represents one occurrence of a value.

Front

What is a box plot (box and whisker plot)?

Back

A box plot is a graphical representation of data that shows the distribution through five summary statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

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. A data set may have one mode, more than one mode, or no mode at all.

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

How do you interpret a box plot?

Back

A box plot shows the spread and center of a data set. The box represents the interquartile range (IQR), while the lines (whiskers) extend to the minimum and maximum values.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a 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 a data set, representing the 75th percentile.

Front

How do you calculate the median of an even set of numbers?

Back

To find the median of an even set, average the two middle numbers after sorting the data.

Front

What does a higher median indicate in a box plot?

Back

A higher median indicates that the central tendency of the data is higher, suggesting that more data points are concentrated at higher values.