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 lower quartile represent in a Box and Whisker Plot?

Back

The lower quartile (Q1) represents the value below which 25% of the data falls.

Front

How do you find the median in a data set?

Back

To find the median, arrange the data in ascending order and locate the middle value. If there is an even number of values, average the two middle values.

Front

What does the upper quartile represent in a Box and Whisker Plot?

Back

The upper quartile (Q3) represents the value below which 75% of the data falls.

Front

What do the points A and E represent on a Box and Whisker Plot?

Back

Points A and E represent the least and greatest values in the data set.

Front

What is the purpose of a Box and Whisker Plot?

Back

The purpose of a Box and Whisker Plot is to visually summarize the distribution of a data set and identify its central tendency and variability.

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 does the median represent in a Box and Whisker Plot?

Back

The median represents the middle value of the data set, dividing it into two equal halves.

Front

What percentage of data falls between the lower and upper quartiles?

Back

50% of the data falls between the lower quartile (Q1) and upper quartile (Q3).

Front

How can you determine outliers using a Box and Whisker Plot?

Back

Outliers can be determined by identifying values that fall below Q1 - 1.5*IQR or above Q3 + 1.5*IQR.