Box Plots: #1

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that shows its minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum values.

Front

What does the median represent in a dataset?

Back

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

Front

How do you find the interquartile range (IQR)?

Back

The IQR is found by subtracting the first quartile (Q1) from the third quartile (Q3). IQR = Q3 - Q1.

Front

What does the upper quartile (Q3) represent?

Back

Q3 is the value that separates the highest 25% of the data from the rest. It is the median of the upper half of the dataset.

Front

What does the lower quartile (Q1) represent?

Back

Q1 is the value that separates the lowest 25% of the data from the rest. It is the median of the lower half of the dataset.

Front

What is the range of a dataset?

Back

The range is the difference between the maximum and minimum values in a dataset. Range = Maximum - Minimum.

Front

What percentage of data lies between Q1 and Q3?

Back

50% of the data lies between Q1 and Q3, which is known as the interquartile range.

Front

How do you interpret a box plot?

Back

A box plot shows the distribution of data, highlighting the median, quartiles, and potential outliers, allowing for quick visual analysis.

Front

What is an outlier in a box plot?

Back

An outlier is a data point that lies significantly outside the range of the rest of the data, often represented as individual points beyond the whiskers of the box plot.

Front

How can you determine if a dataset is skewed using a box plot?

Back

If the median line in the box is closer to Q1 or Q3, or if the whiskers are of unequal length, the dataset may be skewed.