Question

A local swimming pool does not use any selection tests. forty percent of the lifeguards employed at this swimming pool are identified as being successful at the job. this percentage represents the:

Answer 1

The base rate, aka the rate that exists before other things are factored in. If you were going to measure the effect of employee training, you would want to see the new number of successful lifeguards compared to the base rate of successful guards before you changed anything.