The phrase "a higher than average number" is correct and usable in written English.
It can be used when discussing statistics, data, or comparisons that indicate a quantity exceeding the norm or typical level.
Example: "The survey revealed a higher than average number of participants expressing interest in the new program."
Alternatives: "above average figure" or "greater than typical amount".
Clare Beckett is head of student recruitment at Thames Valley University, which takes a higher than average number of students through clearing.
Although still a low number, a higher than average number of census tracts have a similar proportion to the racial composition of the county as a whole.
It is leading the country in small-business creation, especially in IT and telecoms, and has a higher than average number of exporters.
Where there were once single-family homes owned by their residents, there is a higher than average number of rental properties, meaning a more transient population.
The Dewsbury-based school for 11- to 16-year-olds was rated "good" in its last inspection but it's been struggling with falling numbers and a higher than average number of children on free school meals.
Such innovation is already paying dividends at the Open University (OU), for example, where a higher than average number of students recently signed up to a new course on the ecology and wildlife of Antarctica.
Another said it is only communicating by email and that this is causing problems, while it is also rejecting a higher-than average number of customers.
He does seem to still have a higher-than-average number of celebrity friends.
Ohio, where the play is set, had a higher-than-average number of black-owned machine shops, many of which received an economic boost from the war.
Finally, the team added one more factor: a higher-than-average number of minorities, almost all of them African-Americans or Hispanics.
As recently as late February, federal regulators had flagged World Wide Travel for a higher-than-average number of crashes and several cases of driver fatigue.
