In 2015, college-bound high school graduates who had taken the SAT had a mean score of $495$ points on the critical reading section of the test with a standard deviation of $116$ points, and a mean score of $511$ points on the mathematics section with a standard deviation of $120$ points. **What is the standard deviation of the sum of the SAT critical reading and mathematics scores for a randomly selected student?** [[☃ radio 1]]