Box and Whisker Plots

Front

What is a Box and Whisker Plot?

Back

A Box and Whisker Plot is a graphical representation of a data set that shows its minimum, first quartile, median, third quartile, 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.

Front

How do you find the median of a data set with an odd number of values?

Back

To find the median, arrange the numbers in order and select the middle number.

Front

How do you find the median of a data set with an even number of values?

Back

To find the median, arrange the numbers in order, take the two middle numbers, and calculate their average.

Front

What is a quartile in statistics?

Back

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

Front

What does the first quartile (Q1) represent?

Back

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

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What does the third quartile (Q3) represent?

Back

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

Front

What is the interquartile range (IQR)?

Back

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

Front

What does the whisker in a Box and Whisker Plot represent?

Back

The whiskers extend from the quartiles to the minimum and maximum values, showing the range of the data.

Front

How do you identify outliers in a Box and Whisker Plot?

Back

Outliers are typically identified as values that fall below Q1 - 1.5*IQR or above Q3 + 1.5*IQR.