Question 1 (8 marks)
The median annual personal income by visa stream is presented in the table below.
Use this data to answer the following questions a.-d.
Median Income in $
2015
Median Income in $
2017
Visa Stream
Skilled
55,248
55,904
Family
36,977
37,413
Humanitarian 29,806
30,365
Other PR
47,977
49,383
Required Tasks:
a. Use an appropriate graphical technique to summarize the data above and interpret (2 marks)
b. Use an appropriate graphical technique to compare the percentage change of income between
2015 and 2017 by Visa stream. (2 marks)
c. Comment on your observations in parts (b)(2 marks)
d. Explain why you selected the particular graphical technique in part a and b. (2 marks)​