What is a voluntary response sample? choose the correct answer below. a. a sample in which the researchers decide which subjects to include in the study. b. a sample in which the response "no opinion" or "not applicable" are choices. c. a sample in which the sample size is very large. d. a sample in which the subjects themselves decide whether to be included in the study.

D. A sample in which the subjects themselves decide whether to be included in the study.                                                                                                                                  

Explanation:

Voluntary response sample: This is a sample made up of volunteers. These samples are mostly biased. For example, a person being called in a radio show poll might have powerful opinions over a topic in any direction. In a voluntary random sample, chooses themselves by answering a common appeal.  These samples are unreliable because they are bias, hence the result is usually biased.

answer; the correct answer is (d) binge eating followed by compensatory behavior;

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.