a. Draw a tree diagram representing all of the possible results. (Assume all five questions are answered.)
Question:
b. How many possible ways are there of getting three true and two false answers?
c. How could you use combinations or permutations to answer 4b?
d. Suppose you are sure that the answers to the first two questions on the test are true, and you write these answers down. Then you guess the answers to the remaining three questions at random. What is the probability that there will be three true and two false answers on the test?
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a b 10 Count the number of such results from your diagram ...View the full answer
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Related Book For 
Discovering Advanced Algebra An Investigative Approach
ISBN: 978-1559539845
1st edition
Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke
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