Final answer:
To construct a box plot, find the minimum and maximum values, calculate the quartiles, and draw a rectangle (box) with whiskers extending to the minimum and maximum values.
Step-by-step explanation:
To construct a box plot, follow these steps:
- Find the minimum and maximum values of the set of numbers. In this case, the minimum value is 5 and the maximum value is 20.
- Calculate the first quartile (Q1), second quartile (Q2 or median), and third quartile (Q3). In this case, Q1 is 14, Q2 is 18, and Q3 is 19.
- Draw a number line and mark the minimum, Q1, Q2 (median), and Q3 values on it.
- Draw a rectangle (box) between the Q1 and Q3 values.
- Extend lines from the ends of the box (whiskers) to the minimum and maximum values.
In this case, the box plot would have a box with the values 14, 18, and 19 and whiskers extending from 5 to 14 and from 19 to 20.