box and whisker practice

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 (Q1), median, third quartile (Q3), and maximum values.

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. It divides the data into two equal halves.

Front

What are quartiles in statistics?

Back

Quartiles are values that divide a data set into four equal parts. The first quartile (Q1) is the median of the lower half, the second quartile (Q2) is the median, and the third quartile (Q3) is the median of the upper half.

Front

How do you find the upper quartile (Q3)?

Back

To find Q3, order the data set from least to greatest, then find the median of the upper half of the data.

Front

What is the maximum value in a data set?

Back

The maximum value is the largest number in a data set.

Front

What does it mean for data to be 'spread out'?

Back

Data is considered 'spread out' when there is a large range between the minimum and maximum values, indicating variability in the data.

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the minimum value from the maximum value.

Front

What percent of data falls between the first quartile (Q1) and the third quartile (Q3)?

Back

50% of the data falls between Q1 and Q3.

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). It measures the spread of the middle 50% of the data.

Front

What does a box and whisker plot show about outliers?

Back

Outliers are data points that fall significantly outside the range of the other data points. In a box and whisker plot, they are often represented as individual points beyond the whiskers.