Final answer:
Approximately 2% of people's IQs are expected to be over 75.
Step-by-step explanation:
To find the percentage of people's IQs expected to be over 75, we can use the information provided in the reference. According to the reference, about 2% of the population falls into the highest intelligence range. This means that approximately 2% of people's IQs are expected to be over 75.