Question

3. jamal found the mean hourly wage of employees at his company using the data in the table. In a report he stated, “The typical salary at the company is about $23.00 per hour”. How is this graph misleading?
6.50 6.50 6.50 6.50 6.50
6.50 6.50 7.50 7.50 7.50
7.50 7.50 7.50 7.50 7.50
60.00 65.00 75.00 75.00 75.00
A. The mean is not a good measure of the salaries because five employees have salaries far above fifteen employees’ salaries.
B. The mean of the data is not about $23.00.
C. Jamal should always use the highest wage
D. His statement is not misleading

4. which display is best to determine the relationship between the number of hours worked and the amount of money paid.
A. histogram with intervals of 5
B. histogram with intervals of 3
C. line plot
D. line graph

Answer 1

3. is A.

This is because the extreme values from the 5 employees affect the mean greatly, making it seem like a higher value, even though it is low.

4. is D. 

By creating a line graph, you will be able to see the relationship easily between the two factors, and even create a line of best fit.