an average age/temperature
The weather on this mountain is fantastic, with an average temperature of 17°C. (Preliminary English Test; B1; Chinese)
The average person in the street is a lot better off than they were forty years ago.
a student of average ability
This makes people beli[e]ve that a lot of the food we eat is fast-food, but it's not true at all, in fact it's a very small part of our average diet. (First Certificate in English; B2; Swedish)
The meal was pretty average.
I didn't get the high standard [of] service that you had offered me, and the food was pretty average. (Certificate in Advanced English; C1; Chinese)
Prices have risen by an average of 4% over the past year.
On the table was my mark sheet with the average as 90%. (Preliminary English Test; B1; Tamil)
An 8-hour working day is about the average.
The audience figures were lower than average for this sort of film.
The quality of candidates was (well) below/above average.
I expect to spend an average of £20 on a meal in a restaurant.
I [don't] have much time to watch TV and I only spend an average of two to five hours [a] week. (Preliminary English Test; B1; Portuguese)
Female workers earn, on average, a third less than men.
On average, our pupils are 16 years old and they join actively in all the events we organise. (First Certificate in English; B2; Catalan)