Question

juan repairs 4 types of electronic devices in his repair shop. the number of each type that he repaired last week is shown in the bar graph, answer the questions. (a) which type of device did juan repair the least often? telephone computer radio television how many repairs on that type of device did juan make? repair(s) (b) how many more telephones than radios did juan repair? 4 more (c) on how many types of devices did juan perform more than 6 repairs? type(s)

Explanation:

Step1: Analyze bar - graph for least - repaired device

From the bar - graph, the height of the bar for television is the shortest. The number of television repairs is 4.

Step2: Calculate difference between telephone and radio repairs

The number of telephone repairs is 10 and the number of radio repairs is 6. The difference is $10 - 6=4$.

Step3: Count devices with more than 6 repairs

Telephone has 10 repairs (more than 6), computer has 8 repairs (more than 6), radio has 6 repairs (not more than 6), television has 4 repairs (not more than 6). So, 2 types of devices (telephone and computer) have more than 6 repairs.

Answer:

(a) Television; 4
(b) 4
(c) 2