3 Chapter Review

Runway 'taxi' time (landing to terminal) of five American Airline flights are as follows: 12 min, 8 min, 21 min, 17 min, 12 min. What is the mean taxi time at this airport?

• 8 min

• 12 min

• 14 min

• 17 min

What is the median of those five American Airline flight taxi times? (12 min, 8 min, 21 min, 17 min, 12 min.).

• 8 min

• 12 min

• 14 min

• 17 min

What is the mode of those five American Airline flight taxi times? (12 min, 8 min, 21 min, 17 min, 12 min.).

• 8 min

• 12 min

• 14 min

• 17 min

The taxi-in time for 8 flights that landed in LA have a mean of 11.4 min and a standard deviation of 7.0 min. what is the z-score for a taxi-in time of 6 min?

You plan to investigate the variation of taxi-in times for flights that have landed in LA. Name at least two measures of variation for those data.

• Standard deviation, variance

• Standard deviation, mean

• Variance, Maximum

• Range, Standard deviation

What are the symbols used for the sample mean and the population mean?

What are the symbols used for the sample standard deviation and the population standard deviation?

Approximately what percentage of taxi-in times is less than the 75th percentile?

Name the values that constitute the 5-number summary.

• Mean, Median, Mode, Standard deviation, Variance

• Minimum, first quartile Q₁, Mean, third quartile Q₃, Maximum

• Minimum, first quartile Q₁, Median, third quartile Q₃, Maximum

• Minimum, first quartile Q₁, Mode, third quartile Q₃, Maximum