There are 1000 students in a high school Among the 1000 stud

There are 1000 students in a high school. Among the 1000 students, 800 students have a laptop and 300 students have a tablet. 150 students have both devices.

1. What is the probability that a randlomly selected student has neither device? What is the probability that a randlomly selected student has a laptop, given that he/she has a tablet? Let event A be the selected student having a laptop, and event B be the selected student having a tablet. Are A and B indpendent events? Why or why not?

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