Interactive practice questions
Two groups of people, athletes and non-athletes, had their resting heart rate measured. The results were displayed in a pair of box plots.
| Athletes | ||
40 50 60 70 80 90 |
||
| Non-athletes | ||
40 50 60 70 80 90 Beats per minute |
What is the median heart rate of athletes?
What is the median heart rate of the non-athletes?
Using this measure, which group has the lower heart rates?
Athletes
Non-athletes
What is the interquartile range of the athletes' heart rates?
What is the interquartile range of the non-athletes' heart rates?
Using this measure, which group has more consistent heart rate measures?
Athletes
Non-athletes
The two box plots below show the data collected by the manufacturers on the life-span of light bulbs, measured in thousands of hours.
A builder can choose between two different types of brick that are coloured red or yellow. The box plots below illustrate the results of tests on the strength of the bricks.
A class took an English test and a Mathematics test. Both tests had a maximum possible mark of $25$25. The results are illustrated below.