Nick is taking his written drivers test. As he answers each question, the progress bar at the bottom of the screen shows how many questions he has completed. He just completed question 16, and the progress bar shows he is 20% complete. How many total questions are there

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?