A bag contains 12 black marbles and 8 white marbles. Kirsten randomly selects a marble from the bag. What is the probability that Kirsten's marble is white? Explain your reasoning.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Part A only
A rcschools-my.sharepoint.com/personal/vaughanc_rcschools_net/_layouts/15/Doc.a
UNDERSTANDE
Part A
A bag contains 12 black marbles and 8 white marbles. Kirsten randomly
selects a marble from the bag. What is the probability that Kirsten's
marble is white? Explain your reasoning.
Part B
Suppose Kirsten randomly selects a black marble 4 times and does not
return these marbles to the bag. Is she more likely to select a black
marble or a white marble on the next draw? Explain your answer.
- Type here to search
DOLL
近
Transcribed Image Text:A rcschools-my.sharepoint.com/personal/vaughanc_rcschools_net/_layouts/15/Doc.a UNDERSTANDE Part A A bag contains 12 black marbles and 8 white marbles. Kirsten randomly selects a marble from the bag. What is the probability that Kirsten's marble is white? Explain your reasoning. Part B Suppose Kirsten randomly selects a black marble 4 times and does not return these marbles to the bag. Is she more likely to select a black marble or a white marble on the next draw? Explain your answer. - Type here to search DOLL 近
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