How many people with ASD have ID?

I'm curious to know, based on the given paragraph, how prevalent is intellectual disability (ID) among individuals with Autism Spectrum Disorder (ASD)? Could you elaborate on the proportion of people diagnosed with ASD who also have ID, and what are the potential implications of this comorbidity on their daily lives and treatment options? Additionally, are there any specific studies or research that have explored the connection between ASD and ID in more depth?