Which situation shows independent events?

A.
Kim randomly chooses a word out of the dictionary. Then, she randomly chooses a word from the dictionary again.

B.
Tim picks a marble at random and does not put it back. Then he picks another marble at random.

C.
A teacher needs two different volunteers. She randomly selects a girl. Then she randomly selects another girl.

D.
A group of friends is drawing names for a gift exchange. Anthony chooses and then Bernice chooses next.

Question

Which situation shows independent events?	
 
 A.
Kim randomly chooses a word out of the dictionary. Then, she randomly chooses a word from the dictionary again.
 
 B.
Tim picks a marble at random and does not put it back. Then he picks another marble at random.
 
 C.
A teacher needs two different volunteers. She randomly selects a girl. Then she randomly selects another girl.
 
 D.
A group of friends is drawing names for a gift exchange. Anthony chooses and then Bernice chooses next.

anonymous · Answer

please help

anonymous · Answer

What answer's do you think are not correct? Remember Independent means that the next choice does not have an effect on the first.

anonymous · Answer

*answers

anonymous · Answer

um.... A.

anonymous · Answer

You don't think it's A or you do think it's A?

anonymous · Answer

im lost see i need this question or im dead seriously i have no clue.

anonymous · Answer

Okay well in B, C, and D the first choice directly affects the second. In B if you pull the marble but do not put it back it changes the probability, and with D if you are picking names for a gift exchange you will not replace the name. With C it's not correct because she's randomly selecting a girl both times. The correct answer would then be A.

anonymous · Answer

Haha I love your name