Answer
The median is 42 and the first quartile median of the lower half is 28, and the third quartile median of the upper half is 67
The number line is shown below
The box is shown below
Work Step by Step
Order the data. Find the median and quartile.
15,23,28,33,34, (42) ,49,52,67,71,88
First quartile: 15,23,28,33,34 median of lower half: 28
Third quartile: 49,52,67,71,88 median of upper half: 67
Least Value: 15 Greatest Value: 88
To draw the box use quartile 1 and quartile 3
Draw a line through the median
Draw whiskers from the box to the least & greatest values.
