Answer:
4
Step-by-step explanation:
2+2=4
Trigonometric identity

Substituting with the secant value given:
Answer:
Yes. There is a bias in the selected sample.
Step-by-step explanation:
Population of interest = undergraduate students at the university
Respondents to email requests = 2,000 students
Sample size = 100 students
Sample is based on the 2,000 respondents.
Therefore, sample is biased.
b) A sampling method is said to be biased if it systematically favors a group. By making some members of the student population systematically more likely to be selected in a sample than others, there is an occurrence of sampling bias. Usually, findings from biased samples can only be generalized to populations that share characteristics with the sample and to the entire population of interest.
Answer:
look it up
Step-by-step explanation:
Answer:
its the second one because i think it is im not sure if u get it wrong dont blame me i said i think it is
Step-by-step explanation:
because i think it is