A customer got a great haircut at a salon and went back six weeks later to the same person to get a second haircut. This time, the customer received one of the worst haircuts of his life. The difference between the two haircuts is due to the characteristic of services.

Variability

Explanation:

Variability -

There are four characteristic of the service , namely , intangibility , inseparability , variability and perishability.

Variability is one of the characteristic of service , which is also known as heterogeneity.

According to variability , there could be possible difference between a particular service , which may deteriorate or even flourish with the time , which depends on various factors like , profit , market price , competition etc.

Hence , It is quite impossible to get the same service again and again .

Hence , from the  given scenario of the question,

The correct answer is variability .