Does it matter how you aggregate the data (SUM or AVG)? Why?

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Questions

1. Which county has:

a. The highest number of cases?

b. The lowest number of cases?

c. How many counties have zero cases?

d. Does it matter how you aggregate the data (SUM or AVG)? Why?

Hints:

-

-

-

-

Use a bar chart.

Remember that there are counties with the same name in different states! Therefore, you probably need to deal with this issue.

You probably need to change the "CountyFIPS" variable to "Discrete" from "Continuous" and to "Dimension" from "Measure".

It may help to apply a filter or sorting on the data in order to answer 1.c.

2. Which state has the highest:

a. Number of deaths?

b. Number of deaths per 100k population?

Hints:

Use a table.

It is probably easiest to create first bar charts and then turn them into a table. You need to choose the right aggregation (SUM or AVG). Think carefully which one is the right one for each column!

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