Table: list of schools in the hawke 's bay region
Question: If the average decile rating of a school in the region is 4.5, how many schools have a decile rating higher than the average?
Step 1 (Operation, Indexing): decile
Step 2 (Reasoning, Arithmetic): comparison, decile and 4.5
Step 3 (Operation, Filter): decile
Step 4 (Reasoning, Aggregating): COUNT, number of school
Answer: 2