Reading Boxplots

Front

What is a boxplot?

Back

A boxplot is a graphical representation of a dataset that displays its minimum, first quartile, median, third quartile, 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, dividing the dataset into two equal halves.

Front

How do you find the range of a dataset?

Back

The range is calculated by subtracting the lowest value from the highest value in the dataset.

Front

What is the lowest score in a dataset?

Back

The lowest score is the smallest value in the dataset.

Front

What is the interquartile range (IQR)?

Back

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

Front

What does Q1 represent in a boxplot?

Back

Q1, or the first quartile, represents the value below which 25% of the data falls.

Front

What does Q3 represent in a boxplot?

Back

Q3, or the third quartile, represents the value below which 75% of the data falls.

Front

How is the median calculated in a dataset with an even number of values?

Back

When there is an even number of values, the median is calculated by averaging the two middle values.

Front

What is the significance of the whiskers in a boxplot?

Back

The whiskers in a boxplot extend from the quartiles to the minimum and maximum values, showing the spread of the data.

Front

What does a boxplot tell us about the distribution of data?

Back

A boxplot provides insights into the central tendency, variability, and skewness of the data distribution.