Question

number of repairs
12
10
8
6
4
2
0
computer radio television dvd player telephone
type of device
(a) which type of device was repaired the least often?
o computer o radio o television o dvd player o telephone
how many repairs were made on that type of device?
□ repair(s)
(b) how many more repairs were made on dvd players than televisions?
□ more repair(s)
(c) how many types of devices had fewer than 9 repairs?
□ type(s)

Explanation:

Step1: Identify lowest - bar

By observing the bar chart, the bar for television is the shortest. So television is repaired the least often. And its height is 3 on the number - of - repairs axis.

Step2: Subtract repair numbers

The number of repairs on DVD players is 8 and on televisions is 3. So \(8 - 3=5\).

Step3: Count devices below 9 repairs

The number of repairs for computer is 10, radio is 7, television is 3, DVD player is 8, and telephone is 9. Devices with fewer than 9 repairs are radio, television, and DVD player, so there are 3 types.

Answer:

(a) television, 3
(b) 5
(c) 3