box and whisker practice

Front

What is a box and whisker plot?

Back

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

Front

What does the term 'quartile' mean?

Back

A quartile is a type of quantile that divides a dataset into four equal parts, each containing 25% of the data.

Front

What is the median in a dataset?

Back

The median is the middle value of a dataset when it is ordered from least to greatest. If there is an even number of observations, the median is the average of the two middle numbers.

Front

How do you find the upper quartile (Q3)?

Back

To find the upper quartile (Q3), first arrange the data in ascending order, then find the median of the upper half of the data.

Front

What is the lower quartile (Q1)?

Back

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

Front

What does the whisker in a box and whisker plot represent?

Back

The whiskers in a box and whisker plot extend from the box to the smallest and largest values in the dataset that are not outliers.

Front

What is an outlier in a dataset?

Back

An outlier is a data point that is significantly different from the other data points in a dataset, often lying outside 1.5 times the interquartile range (IQR) from the quartiles.

Front

How do you calculate the interquartile range (IQR)?

Back

The interquartile range (IQR) is calculated by subtracting the lower quartile (Q1) from the upper quartile (Q3): IQR = Q3 - Q1.

Front

What is the maximum value in a dataset?

Back

The maximum value is the largest number in a dataset.

Front

What is the minimum value in a dataset?

Back

The minimum value is the smallest number in a dataset.