All of the following are rational numbers except a.) 2/3 b.) 1.33 with a line over 33 c.) -16 d.) 3.

Hello!

Rational numbers are any numbers that can be expressed like a fraction in the form of p/q, where q is not equal to zero.

Choice A, 2/3 is expressed like a fraction, so this is a rational number.

Choice B, 1.33 repeated can be expressed like a fraction also. 4/3 = 1.33 repeated, so this is also a rational number.

Choice C, -16 is not expressed as a fraction, but -16/1 is equivalent to -16, so therefore, -16 is also a rational number.

Choice D, 3.14159... is also known as pi (π), which is an irrational number.

Therefore, all the following are rational numbers except choice D, 3.14159

im sorry but no. i just need to answer for 50 poonts oof

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.