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It is possible if we start in the middle traveling to the left and then
come
back to the starting point.
d. Does this graph contain an Euler cycle?
This cycle requires that all edges be used in a path that starts and
stops at
the same vertex.
Is this graph a tree?
No. It does not have any open ends or a root vertex.
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ECON 215 Students in an introductory psychology course
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Chapter 5 Students in an introductory psychology course take five
quizzes and two exams throughout the
semester. Each year, approximately 500 students take the course. The
first quiz has 10 multiplechoice questions where each question has
four choices with only one correct answer. The
passing score on the quiz is 80%.
a. (4 pts) If a student must resort to pure guessing on each question
(selects one of the four
answer choices randomly on each question),
What is the probability the student will pass the quiz? __________
b. (3 pts) If a student knows the material well enough to be able to
eliminate 2 incorrect choices
on each question but selects the answer randomly from the 2
remaining choices,
What is the probability the student will pass the quiz? __________
c. (3 pts) If a student knows the correct answer to five of the ten