Question
Instructions The 10-year increase for populations in the four states starting with the letter 'A' are shown below: State 2000 2010 Alabama 4447100 4779735 Alaska
Instructions
The 10-year increase for populations in the four states starting with the letter 'A' are shown below:
State | 2000 | 2010 |
Alabama | 4447100 | 4779735 |
Alaska | 626932 | 710231 |
Arizona | 5130632 | 6329013 |
Arkansas | 2673400 | 2915921 |
a. Create two vectors representing the populations for the years 2000 and 2010, then use cbind to create a 4x2 population matrix from these two vectors
b. Create a vector which contains the values of percentage increase for each state between 2000 and 2010. Hint - use this formula for each element: (2010 value - 2000 value) / 2000 value
c. Use this vector to calculate another vector which predicts the 2020 populations, using the percentage increase value vector from step b. Hint - use this formula for each element: 2010 value * (1 + percentage increase value)
d. Use cbind to add the 2020 estimated population vector to the population matrix. Overwrite the original matrix object with the new one
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