I agree with what Wayne said, but I would also like to add that there are many neighborhoods and more than one school in Randolph. I would suggest that if there is a particular neighborhood that you are looking at, that you talk to the neighbors there and get their opinion of the neighborhood and schools. Please contact me if I can answer any additional questions for you. (781) 363-0485.
https://www.crimereports.com/ check the a city profile here: http://www.homefair.com/real-estate/city-profile/ and you can check this link for schools http://profiles.doe.mass.edu/. Good luck - firstname.lastname@example.org