OPRE 3360 Exam 2 Review EXAM QUESTIONS & ANSWERS

OPRE 3360 Exam 2 Review

Experiment - correct answer✔ ✔ any process that generates well-
defined outcomes



Sample space - correct answer✔ ✔ the set of all experimental
outcomes


what are the experiment outcomes:
A. Toss a coin
B. Roll a dice

C. play a football game - correct answer✔ ✔ A. S={T,H}

B. S={1,2,3,4,5,6}
C. S={win, lose, win}


statistical experiments - correct answer✔ ✔ probability determines
outcomes
(aka random experiments)



multiple step experiments - correct answer✔ ✔ an experiment that
can be described as a sequence of steps

, tree diagram - correct answer✔ ✔ a helpful graphical representation
of a multiple-step experiment


counting rule for combination equation - correct answer✔ ✔ C (N k)
=(N k) = N!/k!(N − k)!


counting rule for permutation equation - correct answer✔ ✔ P (N k)
= k!(N k)= N! /(N − k)!


assigning probabilities - correct answer✔ ✔ -always between 0 and 1

-in sample, sum always equal to 1



classical method - correct answer✔ ✔ assigning probabilities based
on the assumption of equally likely outcomes


Relative frequency method - correct answer✔ ✔ assigning
probabilities based on experimentation or historical data
-frequency/# of observations



Event - correct answer✔ ✔ collection of sample points or outcomes