38. at night, a driver should dim his headlights when an oncoming vehicle comes within:
a.500 feet
b.200 feet
c.400 feet
d.100 feet

500 feet because D and B is too close and C is in the middle. I would go with A.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo