In male identical twins, if one of the twins is gay, the other has about a __________ percent chance of also being gay.
A. 22
B. 52
C. 76
D. 97
Answer: B
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If one score is randomly selected from a normal distribution with ยต = 100 and ? = 20, the probability of obtaining a score between X = 90 and X = 100 is p = 0.3085
Indicate whether the statement is true or false
Stem cells can change into and become different types of cells.
Answer the following statement true (T) or false (F)
When food distends the duodenum, the duodenum releases which hormone?
a. CCK b. aldosterone c. angiotensin II d. prolactin
Robb carefully designed a study to test a method for reducing test anxiety among students. On the day he conducts his post-test, a broken water main nearby results in jack hammering and other construction sounds that are seem to be distracting research participants. Robb's ability to detect differences among his groups may have been compromised by ____
a. low reliability of the measure b. random heterogeneity of participants c. poor reliability of treatment implementation d. random irrelevancies in the setting