Answer:
Following are the solution to this question:
Step-by-step explanation:
Please find the complete question in the attachment file.
In choice (a):
7 classes are available because there are 7 bars of the histogram.
In choice (b):
Its lowest frequency is $32,000 for employee wages
There are around 20 of them.
It is around 20 the least frequency
$ 47,000 was its largest frequency for employees.
There are another 300
The highest frequency is about 300
In choice (c):
Its width of the class is 5, its difference between all the centers, that can also be seen.
In choice (d):
They get below in when we see frequencies per each class.
[tex]\text{Class Midpoint} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Frequency}\\\\32 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 20\\\\37 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 180\\\\42 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 270\\\\47 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 300\\\\52 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 250\\\\57 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 70\\\\62 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 60\\\\[/tex]
They can see in this certain half of workers' wages are between 40,000 and 49,000 dollars.
