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, which 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).
identify the who in this situation. choose the correct answer below.
a. the college
b. the biological organisms that contribute to the bci
c. the students
d. the streams
e. the who is not specified.
identify the what in this situation. select all that apply.
a. substrate of the stream
b. bci
c. acidity of the water
d. temperature
e. name of stream
f. the what is not specified.
identify the when in this situation. choose the correct answer below.
a. one week in november and one week in april
b. over the course of the entire semester
c. the first day of class
d. one day in december and one day in may
e. the when is not specified.

Explanation:

The "Who" are the streams as data is collected about them. "What" includes all measured aspects. "When" isn't specified in the given text.

Answer:

1. D. The streams
2. A. Substrate of the stream, B. BCI, C. Acidity of the water, D. Temperature, E. Name of stream
3. E. The When is not specified