7.1 Data Displays & Their Shape

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the minimum, first quartile, median, third quartile, and maximum values.

Front

What does IQR stand for?

Back

IQR stands for Interquartile Range, which measures the spread of the middle 50% of a data set.

Front

How do you calculate the IQR?

Back

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

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What does a wider box in a box plot indicate?

Back

A wider box indicates a greater spread or variability in the data.

Front

What is the purpose of a histogram?

Back

A histogram is used to represent the frequency distribution of a data set.

Front

What does the shape of a histogram tell us?

Back

The shape of a histogram can indicate the distribution of data, such as whether it is normal, skewed, or uniform.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is a quartile?

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

Q1 represents the value below which 25% of the data falls.