Chapter 1. Tutorial 1.2: Creating and interpreting bar charts and pie charts

Problem Statement

null: rand(30,60)
$speedDiv10: null / 10
@months: {March, April, May, June, July}
$monthIndex: rand(0,4)
$month: @months[$monthIndex]
@AirTranPassengersArray: {951713, 972994, 1096753, 1157877, 1187593}
@AmericanAirlinesPassengersArray: {137549, 130274, 136582, 140498, 138654}
@DeltaPassengersArray: { 4817199, 4718221, 4913810, 5024848, 5090391}
@SouthwestPassengersArray: { 103189, 105999, 127197, 148040, 149703}
@UsAirwaysPassengersArray: { 123835, 108203, 111088, 111103, 117829}
@AllOthersPassengersArray: { 1247794, 1132559, 1205596, 1230822, 1218605}
$AirTranPassengers: @AirTranPassengersArray[$monthIndex]
$AmericanAirlinesPassengers: @AmericanAirlinesPassengersArray[$monthIndex]
$DeltaPassengers: @DeltaPassengersArray[$monthIndex]
$SouthwestPassengers: @SouthwestPassengersArray[$monthIndex]
$UsAirwaysPassengers: @UsAirwaysPassengersArray[$monthIndex]
$AllOthersPassengers: @AllOthersPassengersArray[$monthIndex]
$DeltaPassengersDiv10: @DeltaPassengersArray[$monthIndex] / 10
$AirTranPassengersDiv10: @AirTranPassengersArray[$monthIndex] / 10
$AmericanAirlinesPassengersDiv10: @AmericanAirlinesPassengersArray[$monthIndex] / 10
$SouthwestPassengersDiv10: @SouthwestPassengersArray[$monthIndex] / 10
$UsAirwaysPassengersDiv10: @UsAirwaysPassengersArray[$monthIndex] / 10
$AllOthersPassengersDiv10: @AllOthersPassengersArray[$monthIndex] / 10
$DeltaPassengersDiv2: @DeltaPassengersArray[$monthIndex] / 2
$AirTranPassengersDiv2: @AirTranPassengersArray[$monthIndex] / 2
$AllOthersPassengersDiv2: @AllOthersPassengersArray[$monthIndex] / 2
$SouthwestPassengersMult4: @SouthwestPassengersArray[$monthIndex] * 4
$AmericanAirlinesPassengersMult4: @AmericanAirlinesPassengersArray[$monthIndex] * 4
$UsAirwaysPassengersMult4: @UsAirwaysPassengersArray[$monthIndex] * 4
$DeltaPercentage: round($DeltaPassengers / ($UsAirwaysPassengers + $AirTranPassengers + $AmericanAirlinesPassengers + $DeltaPassengers + $SouthwestPassengers + $AllOthersPassengers) * 100, 0)
$DeltaPercentageAlt1: $DeltaPercentage + 5
$DeltaPercentageAlt2: $DeltaPercentage - 5
$DeltaPercentageAlt3: $DeltaPercentage + 15
$DeltaPercentageAlt4: $DeltaPercentage -10
$AllOthers2: $SouthwestPassengers + $AmericanAirlinesPassengers + $UsAirwaysPassengers + $AllOthersPassengers
$AirTranMult2: $AirTranPassengers * 2
$AllOthersMult2: $AllOthersPassengers * 2
$AllOthers2Div2: $AllOthers2 / 2

The table below shows the number of passengers carried by various airlines on domestic flights into or out of the Atlanta Airport during $months 2012. The five airlines with the most passengers are shown separately, and all other airlines are combined.

Airline Number of Passengers
AirTran Airways $AirTranPassengers
American Airlines $AmericanAirlinesPassengers
Delta Air Lines $DeltaPassengers
Southwest Airlines $SouthwestPassengers
US Airways $UsAirwaysPassengers
All Others $AllOthersPassengers
Table : Source: Department of Aviation, Hartsfield-Jackson Atlanta International Airport

Construct, interpret, and compare bar charts and pie charts to show the airline passenger data.

Step 1

questions

Question 1

Use the charts below to answer the question that follows.

A

[ [$AirTranPassengers, $AmericanAirlinesPassengers,$DeltaPassengers, $SouthwestPassengers, $AllOthersPassengers] ]

["AirTran <br/> Airways","American <br/> Airlines", "Delta <br/> Air Lines","Southwest <br/> Airlines", "US Airways"]

500px
200px

B

[ [ $AirTranPassengersDiv10, $AmericanAirlinesPassengers ,$DeltaPassengersDiv10, $SouthwestPassengers, $UsAirwaysPassengers] ]

["AirTran <br/> Airways","American <br/> Airlines", "Delta <br/> Air Lines","Southwest <br/> Airlines", "US Airways"]

500px
200px

C

[ [ $DeltaPassengers, $AirTranPassengers, $AllOthersPassengers, $AmericanAirlinesPassengers ,$UsAirwaysPassengers] ]

["Delta <br/> Air Lines", "AirTran <br/> Airways", "Southwest <br/> Airlines","American <br/> Airlines", "US Airways"]

500px
200px

D

[ [$DeltaPassengers, $AirTranPassengers, $SouthwestPassengers, $AmericanAirlinesPassengers, $UsAirwaysPassengers] ]

["Delta <br/> Air Lines", "AirTran <br/> Airways", "Southwest <br/> Airlines", "American <br/> Airlines", "US Airways"]

500px
200px

E

[ [$DeltaPassengersDiv10, $AirTranPassengers, $SouthwestPassengers, $AmericanAirlinesPassengers, $UsAirwaysPassengers] ]

["Delta <br/> Air Lines", "AirTran <br/> Airways", "Southwest <br/> Airlines", "American <br/> Airlines", "US Airways"]

500px
200px

Which bar chart correctly shows the passenger data for the top 5 airlines only?

A.
B.
C.
D.
E.
500px
200px

Step 2

questions

Question 4

A

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranPassengers], ["Southwest Airlines", $SouthwestPassengers],["American Airlines",$AmericanAirlinesPassengers] , ["US Airways", $UsAirwaysPassengers], ["All Others", $AllOthersPassengers ]]]

400px
300px
pie
5

B

[ [ ["Delta Air Lines",$DeltaPassengersDiv2],["AirTran Airways",$AirTranPassengersDiv2], ["Southwest Airlines", $SouthwestPassengers],["American Airlines",$AmericanAirlinesPassengers] , ["US Airways", $UsAirwaysPassengers], ["All Others", $AllOthersPassengers ]]]

400px
300px
pie
5

C

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranPassengersDiv2], ["Southwest Airlines", $SouthwestPassengers],["American Airlines",$AmericanAirlinesPassengers] , ["US Airways", $UsAirwaysPassengers], ["All Others", $AllOthersPassengersDiv2 ]]]

400px
300px
pie
5

D

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranPassengers], ["Southwest Airlines", $SouthwestPassengersMult4],["American Airlines",$AmericanAirlinesPassengersMult4] , ["US Airways", $UsAirwaysPassengersMult4], ["All Others", $AllOthersPassengers ]]]

400px
300px
pie
5

Which of the following pie charts represents the airline passenger data?

A.
B.
C.
D.
E.
400px
300px
pie
5

Step 3

Question 6

A

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranMult2], ["All Others", $AllOthersMult2]]]

400px
300px
pie
5

B

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranPassengersDiv2], ["All Others", $AllOthers2Div2]]]

400px
300px
pie
5

C

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranPassengers], ["All Others", $AllOthers2]]]

400px
300px
pie
5

D

[ [ ["Delta Air Lines",$DeltaPassengers],["AirTran Airways",$AirTranPassengers], ["All Others", $AllOthersPassengers]]]

400px
300px
pie
5

Suppose we only want to show how the top 2 airlines compare to all others combined. Construct a pie chart with only 3 categories—Delta, AirTran, and All Others. Which of the following pie charts represents the given passenger data correctly?

A.
B.
C.
D.
400px
300px
pie
5