# Question

Refer to the following data on distances between seats in business class for various airlines. Find µ, σ, σ2, draw a box plot, and find the mode and any outliers.

Characteristics of Business-Class Carriers

Distance between

Rows (in cm)

Europe

Air France ......... 122

Alitalia ........... 140

British Airways ........ 127

Iberia ........... 107

KLM/Northwest ...... 120

Lufthansa ......... 101

Sabena .......... 122

SAS ............ 132

SwissAir ......... 120

Asia

All Nippon Airw ...... 127

Cathay Pacific ........ 127

JAL ............ 127

Korean Air ........ 127

Malaysia Air ........ 116

Singapore Airl ........ 120

Thai Airways ....... 128

Vietnam Airl ....... 140

North America

Air Canada ........ 140

American Airl ........ 127

Continental ......... 140

Delta Airlines ........ 130

TWA .......... 157

United .......... 124

Characteristics of Business-Class Carriers

Distance between

Rows (in cm)

Europe

Air France ......... 122

Alitalia ........... 140

British Airways ........ 127

Iberia ........... 107

KLM/Northwest ...... 120

Lufthansa ......... 101

Sabena .......... 122

SAS ............ 132

SwissAir ......... 120

Asia

All Nippon Airw ...... 127

Cathay Pacific ........ 127

JAL ............ 127

Korean Air ........ 127

Malaysia Air ........ 116

Singapore Airl ........ 120

Thai Airways ....... 128

Vietnam Airl ....... 140

North America

Air Canada ........ 140

American Airl ........ 127

Continental ......... 140

Delta Airlines ........ 130

TWA .......... 157

United .......... 124

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