The table shows whether a hospital patient admitted during a given time period had or did not have an x ray and whether the patient had or did not have surgery during that hospital stay. one patient is randomly selected. what is the probability that the patient did not have surgery?
write the probability as a percent.
round to the nearest tenth of a percent as needed.
had surgery did not have
surgery
had and x ray 12 7

did not have 5. 33
and x ray