Aflorist wanted to investigate whether a new powder added to the water of cut flowers to keep the flowers fresh longer than just water alone. for a shipment of roses that was delivered to the store, the florist flipped a coin before placing each rose in its own individual container with water. if the coin landed heads up, the rose was placed in water with the new powder; otherwise, the rose was placed in water alone. which of the following is the best description of the method used by the florist?

a. a census, because all roses are assigned to a container
b. an experiment with a completely randomized design
c. an experiment with a blocked design, with blocking by type of water
d. an experiment with a matched-pairs design
e. an observational study

Awife was having an affair with her neighbor. the wife and her husband had a prenuptial agreement that prevented the wife from receiving any of the husband’s sizable fortune in the event of a divorce. the wife and her neighbor formed a plan to murder the husband and run away together with the wife’s inheritance. the neighbor shot the husband one evening, killing him instantly, then drove to a town 100 miles away and checked into a motel. later that night, the police showed up at the motel with a valid warrant for the neighbor’s arrest. after the neighbor was arrested and placed in a police car, the police asked the motel clerk for permission to search the room, and the clerk granted the request. the police found the gun hidden in the tank of the toilet. the wife and the neighbor were each charged with first-degree murder and tried separately. at her trial, the wife sought to suppress any evidence of the gun, arguing that it was seized illegally. what is the prosecution’s strongest response to this argument? athe motel clerk gave the police permission to search the room. bthe wife was not staying in the motel room where the gun was found. cthe gun was found in a search incident to a lawful arrest. dthe neighbor did not have a reason

Agraduate student wants to examine the effect of print media versus televised media on individuals’ position on several social issues. the superintendent of a local work release facility, a family friend, will allow the graduate student access to the prison population to her quickly accrue subjects. the student’s irb should: approve this project since the risk appears to be no > minimal.not approve this project because the prisoners are merely a population of convenience for the student.approve this project since the superintendent is the ultimate authority on what happens in his facility.approve this project but submit it for federal review.

What are the most populous and least areas of russia and why are some areas more heavily populated than others