A novice investor would like to figure out which of three Digital Currencies (Bitcoin, Ethereum, and Dogecoin) they should invest $1000 in. To do so they look at the daily returns of the three currencies over the last 365 days.

a. Identify the population in this case.

b. Identify a/the sample in this case.

c. What is the variable of interest?

d. Is this variable qualitative or quantitative?

e. Give an example of 5 values we might observe in the sample.