The total population of teachers in a school system consists of 25 percent elementary, 30 percent middle school, and 45 percent secondary. A researcher selects a random sample of 60 teachers, made up of 15 elementary, 18 middle school, and 27 high school teachers. This is an example of
a. simple random sampling. c. cluster sampling.
b. stratified sampling. d. quota sampling.
Question 2
Ephraim, a student at Central State University, where parking spaces for students are few and far between, refuses to attempt to park in the spaces designated for students. Further, he will not buy a student parking sticker for his car. Though he receives numerous tickets, he continues to blatantly ignore all parking rules and regulations. Which of the following answers would describe postconventional justification for his behavior?
a. He parks where he wants because his mom told him to do so.
b. It is wrong for the university to make students pay for a service they can't guarantee.
c. He is not aware of how his actions may harm the student body.
d. Campus security is oblivious to the needs of the students and should not be part of the parking division.
The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black
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system equation