FB 16 - Box Plots

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that displays the minimum, first quartile (Q1), median, third quartile (Q3), and maximum values.

Front

How do you calculate the interquartile range (IQR)?

Back

IQR = Q3 - Q1, which represents the range of the middle 50% of the data.

Front

What does the median represent in a dataset?

Back

The median is the middle value when the data is arranged in ascending order, dividing the dataset into two equal halves.

Front

What are quartiles?

Back

Quartiles are values that divide a dataset into four equal parts: Q1 (25th percentile), Q2 (median or 50th percentile), and Q3 (75th percentile).

Front

What is the purpose of a box plot?

Back

Box plots are used to visually summarize the distribution of a dataset, highlighting its central tendency and variability.

Front

How do you find the median of a dataset?

Back

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

Front

What does the range of a dataset indicate?

Back

The range is the difference between the maximum and minimum values, indicating the spread of the data.

Front

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

Back

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

Front

How can you determine the middle 50% of a dataset using a box plot?

Back

The middle 50% is represented by the box in the box plot, which spans from Q1 to Q3.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values).