Which of the following is true of predictive patterns in data mining?
a. they occur when a minimum of three database elements occur together in a significant way.
b. they occur when only two database elements tend to occur together in a significant way.
c. they identify database elements that are different.
d. they identify the similarities in patterns in data sets.

answer; the correct answer is technician b;

that without the operating systems you would have to control and synchronize computer hardware.

answer; availability;

amazon is a website were you shop cosmetics such as clothes, electronics and food. amazon also makes there own thechnology such as kindle book readers and tablets or the alexa which is an inteligent ai. and they also have a streaming service which is called prime video.