A study has a quota of 200. if you can expect 80% of you sample to recovery in 6 days, how many pieces of sample will need to be added to the study in order to reach quota in 6 days.

How do you find principle and simple interest

Ineed in figuring out this problem.

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective