Please explain the features of the normal distribution and include a labeled figure.

What will be an ideal response?


For the figure see Figure 11-4. What we see there is a “bell-shaped” distribution with the following features: The bulk of observations lie in the center, where there is a single peak. More specifically, in a normal distribution, half (50%) of the observations lie above the mean and half lie below it. The mean, median, and mode have the same numerical values. Fewer and fewer observations fall in the tails of the distribution. The spread of the distribution is symmetric: one side is the mirror image of the other. If data have such a distribution, the frequency or proportion of cases lying between any two values of the variable can be described by “distances” between the mean and standard deviations. Approximately 68% of the observations are between plus and minus one standard deviation of the mean. Approximately 95% of the cases will fall plus and minus two standard deviations of the mean. Almost all of the data will be plus and minus three standard deviations of the mean.

Political Science

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Which of the following is a drawback typically associated with the plural executive system?

a. There is a discrepancy between the number of staff required and the number elected. b. The voting right of the public is exploited. c. The governor can misuse his or her power of appointment. d. This system compromises on consistency and teamwork.

Political Science

Prior to the Constitution, the Articles of Confederation

A. had created a three-person executive. B. required a one-year executive that rotated between the different states. C. provided for no independent executive. D. maintained an even stronger executive than the Constitution ultimately created. E. created a single executive who served for six years and was ineligible for reelection.

Political Science

American policy toward the communist countries shortly after the Second World War would best be described as:

A. detente B. liberation C. containment D. support

Political Science

A democracy that elects a president to the executive level of government is known as a(n) _______________________

Fill in the blank with correct word

Political Science