Which of these experimental designs could lead to bias?
a) two mice are given the choice between swiss and american cheese.
b) phil and bart race down the street to determine who is the fastest.
c) a car company pays participants to test drive and evaluate their new auto.
eliminate
d) a private company uses a random taste test of three different, unidentified soft drinks.

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.