When participants who arrive for a research study are put into treatment groups on the basis of chance, A. The research findings will be compromised because you should never randomly assign to groups B. Random assignment has occurred. C. Random sampling has occurred D. The statistical conclusions will also be absolutely correct.

The graph below could be the graph of which exponential function?

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall