Use the tree diagram from example 9 in the task. What is the probability that a student will make EXACTLY a 50% on the true/false test?

Group of answer choices

1/16

3/8

1/4

1/2

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Question 21 pts
Use the tree diagram from example 10 in the task. What is the probability that a student will get all the answers wrong?

Group of answer choices

1/16

81/256

1/2

1/8

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Question 31 pts
Use the example from question 11 on the task. What is the probability that a student would pass the quiz (80 or 100).

Group of answer choices

0.0064

0.00032

0.00672

0.40