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The table to the right shows the arrival data for two airlines in five cities. Complete parts (a) through (c) below. Destination Los Angeles Phoenix San Diego San Francisco Seattle Total Excelsior Airlines Percentage on-time 90.3% 96.1% 90.3% 89.9% 86.9% ... Number of arrivals 471 247 159 507 2198 3582 Paradise Airlines Percentage on-time 86.5% 94.7% 82.1% 76.6% 75.5% Number of arrivals 889 5299 381 377 223 7169 a. Which airline has the higher percentage of on-time flights to the five cities? Excelsior Airlines has the higher percentage of on-time flights. b. Compute the percentage of on-time flights for the two airlines over all five cities. Over all five cities, Excelsior Airlines had an on-time percentage of % and Paradise Airlines had an on-time percentage of %. (Round to the nearest tenth as needed.)

The table to the right shows the arrival data for two airlines in five cities. Complete parts (a) through (c) below. Destination Los Angeles Phoenix San Diego San Francisco Seattle Total Excelsior Airlines Percentage on-time 90.3% 96.1% 90.3% 89.9% 86.9% ... Number of arrivals 471 247 159 507 2198 3582 Paradise Airlines Percentage on-time 86.5% 94.7% 82.1% 76.6% 75.5% Number of arrivals 889 5299 381 377 223 7169 a. Which airline has the higher percentage of on-time flights to the five cities? Excelsior Airlines has the higher percentage of on-time flights. b. Compute the percentage of on-time flights for the two airlines over all five cities. Over all five cities, Excelsior Airlines had an on-time percentage of % and Paradise Airlines had an on-time percentage of %. (Round to the nearest tenth as needed.)

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter9: Solving Quadratic Functions
Section: Chapter Questions
Problem 4CA
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The table to the right shows the arrival data for two airlines in five cities. Complete parts (a) through (c) below. Destination Los Angeles Phoenix San Diego San Francisco Seattle Total Excelsior Airlines Percentage on-time 90.3% 96.1% 90.3% 89.9% 86.9% ... Number of arrivals 471 247 159 507 2198 3582 Paradise Airlines Number of arrivals 889 5299 Percentage on-time 86.5% 94.7% 82.1% 76.6% 75.5% 381 377 223 7169 a. Which airline has the higher percentage of on-time flights to the five cities? Excelsior Airlines has the higher percentage of on-time flights. b. Compute the percentage of on-time flights for the two airlines over all five cities. Over all five cities, Excelsior Airlines had an on-time percentage of % and Paradise Airlines had an on-time percentage of %. (Round to the nearest tenth as needed.)
Transcribed Image Text:The table to the right shows the arrival data for two airlines in five cities. Complete parts (a) through (c) below. Destination Los Angeles Phoenix San Diego San Francisco Seattle Total Excelsior Airlines Percentage on-time 90.3% 96.1% 90.3% 89.9% 86.9% ... Number of arrivals 471 247 159 507 2198 3582 Paradise Airlines Number of arrivals 889 5299 Percentage on-time 86.5% 94.7% 82.1% 76.6% 75.5% 381 377 223 7169 a. Which airline has the higher percentage of on-time flights to the five cities? Excelsior Airlines has the higher percentage of on-time flights. b. Compute the percentage of on-time flights for the two airlines over all five cities. Over all five cities, Excelsior Airlines had an on-time percentage of % and Paradise Airlines had an on-time percentage of %. (Round to the nearest tenth as needed.)
The table to the right shows the arrival data for two airlines in five cities. Complete parts (a) through (c) below. Destination Los Angeles Phoenix San Diego San Francisco Seattle Total Excelsior Airlines Percentage on-time 91.5% 94.9% 92.1% 84.5% 82.7% CHAN Number of arrivals 437 152 277 522 2128 3516 Percentage on-time a. Which airline has the higher percentage of on-time flights to the five cities? Excelsior Airlines has the higher percentage of on-time flights. b. Compute the percentage of on-time flights for the two airlines over all five cities. 89.6% 93.6% 85.1% 76.8% 78.7% Number of arrivals 839 5182 337 386 244 6988 Over all five cities, Excelsior Airlines had an on-time percentage of 85.3 % and Paradise Airlines had an on-time percentage of 91.3 %. (Round to the nearest tenth as needed.) c. Explain the apparent inconsistency in the results. Excelsior Airlines had the higher on-time percentage in the five cities individually, while Paradise Airlines had the higher overall on-time percentage. This inconsistency is because most of Paradise Airlines flights arrive in Phoenix, Seattle, where they have a high percentage of on-time flights. Most of Excelsior Airlines flights landed in where they have a lower percentage of on-time flights.
Transcribed Image Text:The table to the right shows the arrival data for two airlines in five cities. Complete parts (a) through (c) below. Destination Los Angeles Phoenix San Diego San Francisco Seattle Total Excelsior Airlines Percentage on-time 91.5% 94.9% 92.1% 84.5% 82.7% CHAN Number of arrivals 437 152 277 522 2128 3516 Percentage on-time a. Which airline has the higher percentage of on-time flights to the five cities? Excelsior Airlines has the higher percentage of on-time flights. b. Compute the percentage of on-time flights for the two airlines over all five cities. 89.6% 93.6% 85.1% 76.8% 78.7% Number of arrivals 839 5182 337 386 244 6988 Over all five cities, Excelsior Airlines had an on-time percentage of 85.3 % and Paradise Airlines had an on-time percentage of 91.3 %. (Round to the nearest tenth as needed.) c. Explain the apparent inconsistency in the results. Excelsior Airlines had the higher on-time percentage in the five cities individually, while Paradise Airlines had the higher overall on-time percentage. This inconsistency is because most of Paradise Airlines flights arrive in Phoenix, Seattle, where they have a high percentage of on-time flights. Most of Excelsior Airlines flights landed in where they have a lower percentage of on-time flights.
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