Topic 11 Flashcardizz

Front

What is a box plot?

Back

A box plot, also known as a whisker plot, is a standardized way of displaying the distribution of data based on a five-number summary: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does the minimum value represent in a box plot?

Back

The minimum value in a box plot represents the smallest data point in the dataset.

Front

What does the maximum value represent in a box plot?

Back

The maximum value in a box plot represents the largest data point in the dataset.

Front

What are quartiles in statistics?

Back

Quartiles are values that divide a dataset into four equal parts, with each part containing 25% of the data.

Front

How do you calculate the median of a dataset?

Back

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

Front

What is the interquartile range (IQR)?

Back

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

Front

What does a box plot visually represent?

Back

A box plot visually represents the central tendency, variability, and skewness of a dataset.

Front

What is the purpose of the whiskers in a box plot?

Back

The whiskers in a box plot extend from the box to the smallest and largest values that are not outliers, indicating the range of the data.

Front

What are outliers in a dataset?

Back

Outliers are data points that are significantly higher or lower than the majority of the data, often identified as points that fall outside 1.5 times the IQR from the quartiles.

Front

How can you identify outliers using a box plot?

Back

Outliers can be identified in a box plot as points that lie outside the whiskers.