You want to find the average cost of the transportation you used.
Train tickets: $8.50
Coach tickets: $7
Bus tickets: $5.70
Taxi fares: $9
Flight tickets: $180
The mean average is given as $42.04.
The flight tickets because it is way higher at $180 compared to the other costs. Usually what distorts data is when one number is either too low or too high compared to the other numbers. Hope that helps!
