Drug addiction is a serious public health issue that affects millions of people worldwide. It is a complex disease characterized by compulsive drug use despite negative consequences. Drug addiction can have a significant impact on a person's physical and mental health, as well as their social and economic well-being. The...

Mode is the score that occurs most frequently in a set of scores. For example, the mode of 3, 4, 5, 6, 3, 7, 4 8, 3, 9 and 10 is 3 because it is the figure that occurs most frequently in the set. A set of values can have two modes or bi-modals, e.g. 3, 9, 12, 6, 11, 24, 13, 11, 6.