23million Atlanta traffic Chicago traffic Passenger difference between Atlanta

# 23million atlanta traffic chicago traffic passenger

• Test Prep
• hundongo
• 16
• 91% (78) 71 out of 78 people found this document helpful

This preview shows page 3 - 6 out of 16 pages.

23million . ( Atlanta traffic) – (Chicago traffic) = Passenger # difference between Atlanta and Chicago 89 million passengers flew out of Atlanta and 66 million passengers flew out of Chicago: 89 - 66 = 23 million. A city in California spent six million dollars repairing damage to its public buildings in 2010. The following table shows the categories where the money was directed. How much did the city spend to fix damage caused by mold? 720,000 Total expenses amount x Mold exp % = Mold exp 6,000,000 x 12% = 720,000 A city in California spent six million dollars repairing damage to its public buildings in 2010. The following table shows the categories where the money was directed. How much more did the city spend to fix damage caused by termites compared to the damage caused by water? 960,000 Total expenses x Termite exp % = termite exp
6,000,000 x 22% = 1320000 Total expenses x Water exp %= water exp 6,000,000 x 6% = 360000 Termite exp - Water exp = Difference 1320000 - 360000 = 960,000 Students in Professor Smith's Business Statistics course have evaluated the overall effectiveness of the professor's instruction on a five-point scale, where a score of 1 indicates very poor performance and a score of 5 indicates outstanding performance. The raw scores are displayed in the accompanying table: What is the most common score given in the evaluations? 3 Three occurred nine times and the second most frequent number was five with eight occurrences. Continued: What percentage of students gave Professor Smith an evaluation higher than 3? 50% (number of student) / (Students giving that response) = percentage of students with that response 30 / 15 = 50% Fifteen of the 30 students, or 50%, gave an evaluation of 4 or 5. Continued: What percentage of students gave Professor Smith an evaluation of 2 or less? 20% (number of students) / ( # students with that response) = % of students with that response 30 / 6 = 20% Continued: What is the relative frequency of the students who gave Professor Smith an evaluation of 3? 0.3 (# of students with that response) / (# of students) = Relative frequency 9 / 30 = .3 it is true relative frequency is How often something happens divided by all outcomes. it is true the frequency is the outcome it is true (outcome) / (all outcomes) = relative frequency
9 of the 30 students gave Professor Smith a 3. The relative frequency is thus 9/30 = 0.3. it is true if your team has won 9 games from a total of 12 games played:, the Frequency of winning is 9, the Relative Frequency of winning is 9/12 = 75% 02-02 Construct and interpret pie charts and bar charts It is true A pie chart is a segmented circle whose segments portray the relative (or percent) frequencies of the categories of some qualitative variable it is true A bar chart depicts the frequency or relative frequency of each category of qualitative data as a bar rising vertically from the horizontal axis. It is also acceptable for the bar to extend horizontally from the vertical axis.

#### You've reached the end of your free preview.

Want to read all 16 pages?

• Fall '12
• March
• Frequency, Qualitative Research, Frequency distribution, Histogram, relative frequency