The statistic formulated by adding a group of scores together and then by dividing that sum by the total number of scores is called the
a. median.
b. mean.
c. mode.
d. variance.
Answer: b.
You might also like to view...
Which of the following is TRUE regarding physical changes during young adulthood?
a. Individuals with dark skin show skin aging earlier than their counterparts with white skin. b. The immune system increases its production of T cells and B cells. c. The heart muscle starts to become more rigid. d. There is an increase in vital capacity.
One way to reduce the effects of the presence of the observer on the behavior of the observed is to
a. conceal the observer or use hidden camera recorders. b. take careful notes using a rating scale. c. make friends with the observed. d. record only selected details by using a behavioral assessment instrument.
The central nervous system consists of the brain and spinal cord.
Answer the following statement true (T) or false (F)
Smokers tend to have lighter babies. One way that smoking can affect fetal growth and development involves
a. clogging up the fetus’s lungs with smoke byproducts. b. constriction of fetal blood vessels by nicotine. c. damaging the lungs of the fetus. d. damaging the bones of the fetus.