Exam 3: Measures of Central Tendency

The median represents the score that is

In a campaign debate over the level of prosperity in the state, the incumbent governor says: "average income is $53,000." His opponent responds "the average citizen earns only $38,000." Both statements are true. This is possible because

In a small seminar class, there were eight Protestants, four Catholics, three Jews, two Muslims, a Buddhist, and seven students with no religious affiliation ("Nones"). The mode for this variable is

Income distributions almost always have a positive skew (since there are only a few very wealthy people). Therefore, the preferred measure of central tendency for this variable would be the

Which of the following is an accurate summary of the changing household incomes in the United States between 1967 and 2012?

If you subtracted the mean from each score in a distribution and added the results, the sum would be

The mean defines "central tendency" in terms of the

If the scores of an even number of cases are arranged from high to low, the median is

If the scores on a variable are 11, 14, 18, 19, 20, and 25, the median is

The median cannot be found for variables measured at the nominal level because

What is the median of the following set of eleven grades? 55 60 62 67 70 72 75 76 77 85 95

The sum of the differences between the scores of a distribution and the mean of the scores is always

If you changed ONLY the highest score in a distribution of 5 scores, which of the following measure of central tendency would be affected?

It is possible for a variable to have

A researcher is preparing a report and wants to select a measure of central tendency that shows the most common score in a particular distribution. Which statistic should she select?

If a distribution of test scores has a mean of 70 and a median of 63, the distribution has

Which of the following correctly matches the level of measurement of a variable with the preferred measure of central tendency?

The text discusses some of the characteristics of the payrolls for two baseball teams. Which of the following correctly summarizes this comparison?

The grades on a final exam for a statistics class are as follows: 25% As, 35% Bs, 30% Cs, 9% Ds and 1% Fs. The modal grade of the class is

An instructor is preparing a report showing mid-semester grades and notes that the mean, median, and mode are all exactly 76.00. What can she conclude?