Split the difference. It might be close to 75, although I can see no evidence of such.
I. What does an IQ 75 mean?
A full-scale IQ score of 70 to 75 implies considerable intellectual functioning
limitations. The IQ 75 is regarded as a borderline intellectual functioning IQ. All IQs
between 71 and 84 fall under this category. When a person's IQ is less than 84, it
indicates that their cognitive aptitude is poor.