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Mean, Median, Mode, Quartiles

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5. The Dow Jones Travel Index reported what business travelers pay to hotel rooms per night in major U.S cities (The Wall Street Journal, January 16,2004).

a. What is the mean hotel room rate?
b. What is the median hotel room rate?
c. What is the mode?
d. What is the first quartile?
e. What is the third quartile?

The hotel room rates from 20 cities are as follows:

City Rate per Night
Atlanta 163
Boston 177
Chicago 166
Cleveland 126
Dallas 123
Denver 120
Detroit 144
Houston 173
Los Angeles 160
Miami 192
Minneapolis 125
New Orleans 167
New York 245
Orlando 146
Phoenix 139
Pittsburgh 134
San Francisco 167
Seattle 162
St. Louis 145
Washington D.C. 207

a. What is the mean hotel room rate?
b. What is the median hotel room rate?
c. What is the mode?
d. What is the first quartile?
e. What is the third quartile?

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ANSWERS

a. The mean is the average. Add all the numbers together, then divide by the number of observations you have.

sum = 3181
number = 20

mean = 3181/20
mean = 159.05

b. The ...

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