(a) WRITE AND MARK YOUR NAME AND ID ON THE SCANTRON. Write on the top the color of your
exam.
(b) WRITE YOUR NAME ON BOTH SIDES OF THE CHEAT SHEET.
(c)
... [Show More] WRITE YOUR NAME, ID AND SIGNATURE ON THIS PAGE(ABOVE)
(d) DO NOT DETACH ANY PAGES FROM THIS EXAM. EXAM MUST STAY STAPLED DURING THE
WHOLE EXAM.
(e) PUT ALL YOUR BELONGINGS INSIDE YOUR BACKPACK UNDER THE CHAIR.
(f) ONLY ID, NUMBER 2 PENCIL AND PEN, ERASER, SCIENTIFIC CALCULATOR, SCANTRON,
EXAM AND CHEAT SHEET ALLOWED IN THE EXAM.
(g) PUT DOWN THE TABLES ON YOUR RIGHT AND LEFT. ALL ITEMS MUST BE ON YOUR DESK.
Other important Instructions–Read. Points lost for not following directions.
• Closed books, closed notes. Material covered is up to last day of lecture before the exam.
• Only scientific calculator allowed for computations. You may not use your phone or any other electronic
device as calculator. Graphics calculators are not allowed. No exceptions.
• Phones and other electronic devices must be disconnected before you enter the classroom and not turn
on again until you are out of the room. While in the classroom, they must be in your backpack and your
backpack on the floor. Phones in pockets will lead to big loss of points in the exam. It is not worth the
risk.
October 10, 2016 1
Stat 100A -Intro Probability
Practice Midterm 1 J. Sanchez
UCLA Department of Statistics
• Answer for multiple choice questions will be marked in scantron AND the exam. Work will not be read
in multiple choice;Failure to mark your name, ID or some answers will result in point deduction from
the exam grade.
• Left handed students must sit in a seat for left-handed students. The professor will tell students where
to sit. Please, let the professor know that you are left handed once seated and she indicate where to
move.
• ID must be ready to show BEFORE and at all times during the exam. NO ID, no exam.
• This midterm must show your individual work. Talking to others during the midterm, not adhering to
the above, sharing information or breaking any other aspect of the student code of conduct at UCLA
will not be tolerated and will be referred to the Dean of Students oce. You can not exchange papers
or information. All your things must be on the floor. You may not use the empty seats next to you to put
things. Put the tables down. Honor code applies.
• Cheat sheet can have only formulas and definitions, no solved problems, no examples of any kind, no
proofs, no numerical examples, no intermediate steps and no drawings or graphs of any kind.YOUR
NAME MUST BE ON CHEAT SHEET AT ALL TIMES. Be ready to show your cheat sheet when the
instructor requests it. The cheat sheet must be written all in English. Cheat sheets that do not comply
will result in lower grade in the exam. You may have two sides of an 11 by 8 sheet.
• You may not speak to each other in the exam room. Wait until you are out of the room.
GOOD LUCK !!
October 10, 2016 2
Stat 100A -Intro Probability
Practice Midterm 1 J. Sanchez
UCLA Department of Statistics
MULTIPLE CHOICE QUESTIONS. ONLY ONE ANSWER IS CORRECT. CHOICE MUST BE MARKED
ON THE SCANTRON, AND ALSO HERE ON THE EXAM. ONLY THE SCANTRON WILL BE GRADED.
NO MARKS ON SCANTRON OR MORE THAN ONE MARK WILL RESULT IN 0 POINTS FOR THE
QUESTION NOT MARKED, EVEN IF IT IS MARKED ON THE EXAM. You may use the space near the
question for scratch work, but scratch work will not be read.
Question 1. A computer student can repeat an examination until it is passed, but it is allowed to attempt the examination at most four times. The number of outcomes in the sample space of possible outcomes is
(a) 6
(b) 5
(c) 2
(d) 10
(e) 4
Solution 1. List all the outcomes in the sample space S. S = {P, PcP, PcPcP, PcPcPcP, PcPcPcPc} [Show Less]