Vollmer and bourret’s (2000) discovery that the proportion of two- versus three-point shots attempted by basketball players matches the proportion of points obtained from such shots suggests that shot-making in basketball is to some extent reinforced on a schedule.
a) vr
b) vi
c) vt
d) drh

VI schedule.

Explanation:

a Variable Interval schedule (VI) is you are conducting an experiment with different variables but all of those variable have to be applied after a stablished average, for example, there is an experiment of a rat pressing a lever with an average of 10 seconds, the first time, the rat will press the lever exactly at 10 seconds, after that, the rat can press it after 30 or even after 2 seconds, as long as the 10 second average isn't lost.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

what group of people depend on what yoy are talking i will still you once you tell me what group of people you are talking about : )

i think i know what group you are talking about so the brahmins