A Canadian paper manufacturer sells much of its paper in the United States. The manufacturer is paid

Question:

A Canadian paper manufacturer sells much of its paper in the United States. The manufacturer is paid in U.S. dollars but pays its employees in Canadian dollars. The manufacturer is interested in the fluctuating between these two currencies. Each trading day in 2011 the fluctuated by several basis points. (A basis point is 1>100 of a percent.) A year of data is collected.
(a) Identity whether the data are cross sectional or a time series.
(b) Give a name to each variable and indicate it the variable is categorical, ordinal, or numerical (it a variable is numerical, include its units it possible).
(c) List any concerns that you might have tor the accuracy of the data.
Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...