In conducting an experiment, the experimenter divides a sample group of 60 children into two groups of 30 called group A and gro
up B. To make sure the two groups are similar in terms of age, IQ. and so on, the experimenter will assign people to either group A or B using a/an ______ assignment procedure, such as a coin toss, where heads sends a subject to group A and tails sends a subject to group B.
Technology wasn't really advanced in the Mali Empire. They mainly depended on other countries for their weapons. The people in the empire made their own weapons out of bows and arrows.
