A bar graph showing the number of repairs of 5 types of electronic devices is given, it is required to use the graph to answer the questions provided.
(a) It is required to find which device was repaired most often and how many repairs were made on that device.
To do this, find the tallest bar in the graph, and locate which of the devices and the number of repairs made on it.
Notice that the DVD player has the tallest graph with 11 repairs.
Hence, the device with the device that was repaired most often is the DVD player.
It has 11 repairs made on it.
(b) It is required to find how many more repairs were made on televisions than telephones.
To do this, find the number of repairs made on each device using the provided graph, and find the difference in the number of repairs.
From the graph, the number of repairs made on televisions is 10, while the number of repairs made on telephones is 5.
The difference in the number of repairs is:
Hence, 5 more repairs were made on televisions than telephones.
(c) It is required to find how many devices had fewer than 5 repairs.
To do this, find identify the number of devices that had less than 5 repairs made on them.
From the graph, notice that only the computer had fewer than 5 repairs.
It follows that the number of devices that had fewer than 5 repairs is 1.
Answers:
(a) DVD players
11 repairs
(b) 5 more
(c) 1 type