How do I do this step by step The following data lists the n

How do I do this, step by step.

The following data lists the number of correct and wrong dosage amounts calculated by 31 physicians. In a research experiment, a group of 15 physicians was given bottles of epinephrine labeled with a concentration of \'\'1 milligram in 1 milliliter solution,\'\' and another group of 16 physicians was given bottles labeled with a ratio of \'\'1 milliliter of a 1:1000 solution.\'\' If one of the physicians is randomly selected, what is the probability of getting one who calculated the dose correctly? Is that probability as high as it should be? P(physician calculated the dose correctly) = (Round to three decimal places as needed.)

Solution

P(physician calculated the dose correctly)=(11+2)/31 =0.419