Question

identify the ws, name the variables, specify for each variable whether its use indicates that it should be treated as categorical or quantitative, and, for any quantitative variable, how it was measured.
in performing research for an ecology class, students at a college in upstate new york collect data on streams each year. they record a number of biological, chemical, and physical variables, including the stream name, the substrate of the stream (limestone, shale, or mixed), the acidity of the water (ph), the temperature (°c), and the bci (a numerical measure of biological integrity).
c. the first day of class
d. one day in december and one day in may
e. the when is not specified.
identify the where in this situation. choose the correct answer below.
a. the classroom
b. the colleges athletic center pool
c. upstate new york
d. the where is not specified.
identify the why in this situation. choose the correct answer below.
a. to mine for precious stones
b. to reduce the acidity of new yorks streams
c. to increase biological diversity
d. the why is not specified.
identify the how in this situation. select all that apply.
a. mixing several different stream waters together and watching for a reaction
b. gathering sample water from each stream and studying it back at the campus
c. swimming in the streams
d. the how is not specified.

Explanation:

The 'When' isn't given. The research is in upstate New York. Purpose ('Why') is unspecified. Method ('How') isn't clear.

Answer:

E. The When is not specified
C. Upstate New York
D. The Why is not specified
D. The How is not specified