Adrawing of a room has a scale of 1 4 inch = 1 ft. which choice does not represent a proportional relationship, according to the scale? a) 1 inch drawing, 3 feet actual b) 2 inch drawing, 8 feet actual c) 1 2 inch drawing, 2 feet actual d) 1 1 2 inch drawing, 6 feet actual

Step-by-step explanation:

The given scale is

That is, each foot equals one quarter of an inch. In other words, 1 inch equlas 4 feet, because

That means, 1 inch drawing represents 4 feet actual. Now, let's see which choice doesn't have this same proportion.

You can observe that option A has a proportion where 1 inch drawing equals 3 feet actual, which is not the same proportion as the given, because the given one is 1 inch drawing equals 4 feet actual.

Therefore, the right answer is 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.