A. The diagram below shows a different transformation of ABCD. Look carefully at the correspondence between the vertices. Can you rotate or reflect the
original square to make the letters correspond as shown? If you can reflect, where would the line of reflection be? If you can rotate, where would the point
of rotation be?

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.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

at least two

step-by-step explanation: