Student rankings in a class is an example of a(n) scale

A parliamentary system is different from a presidential system primarily for which of the following reasons?

a. In a parliamentary system, the executive and legislative branches are combined. b. In a presidential system, the executive branch ais superior to the legislative. c. The head of government chooses the cabinet in a presidential but not a parliamentary system. d. Both A and B

Answer the following statement(s) true (T) or false (F)

1. Values above the upper fence are defined as outliers in boxplots. 2. The inner fence is an observed value. 3. Observations flagged as outliers generally should be retained when they are not coding errors, when they are plausible values of the variable in question, and when they do not greatly affect the value of the mean. 4. The normal distribution refers to the distribution of a variable that resembles a cigar-shaped curve. 5. The standard deviation is a desirable statistic because metric variables are normally distributed.