Question

You want to find the average cost of the transportation you have used. This is your list. Train tickets: £8.50 Coach tickets: £7 Bus tickets: £5.70 Taxi fares: £9 Flight tickets: £180 You have worked out your mean average to be £42.04. Which cost distorted the data?

Answer 1

Flight tickets

Explanation:

Without the cost of flight tickets added to the mix, the average ticket cost is £7.55, and the range of ticket costs is £3.3.

The cost of flight tickets is more than 50 times the previous range above the highest ticket cost otherwise. Hence it can be considered an outlier in the data set.