BUAL 2600 SET ALL QUESTIONS AND ANSWERS
SURE A+
✔✔sample space outcomes - ✔✔experimental outcomes in the sample space
✔✔0 - ✔✔if E is an experimental outcome, 0 is less than or equal to P(E) is less than 1,
if E can never occur, then P(E)=
✔✔1 - ✔✔if E is an experimental outcome, 0 is less than or equal to P(E) is less than 1,
if E is certain to occur, then P(E)=
✔✔1 - ✔✔if E is an experimental outcome, the probabilities of all the experimental
outcomes must sum to...
✔✔classical method - ✔✔what probability method is used for equally likely outcomes?
✔✔relative frequency method - ✔✔what probability method is for using the long run
relative frequency?
✔✔subjective method - ✔✔what probability method is assessment based on
experience, expertise, or intuition?
✔✔random variable - ✔✔variable whose value is numeric and determined by the
outcome of an experiment
✔✔probability distribution - ✔✔probability model describing a random variable
✔✔binomial, poisson, and hypergeometric - ✔✔3 types of discrete probability
distributions
✔✔event - ✔✔a set of sample space outcomes
, ✔✔probability of an event - ✔✔the sum of the probabilities of the sample space
outcomes
✔✔the ratio of the number of outcomes that correspond to the event divided by the total
number of outcomes - ✔✔if all outcomes equally likely, the probability of an event is
✔✔complement, union, intersection, addition, conditional probability, and multiplication -
✔✔6 elementary probability rules
✔✔the set of all sample space outcomes not in A; complement = 1 - P(A) - ✔✔the
complement of an event A is...
✔✔elementary events that belong to either A or B or both - ✔✔the union of A and B
are...
✔✔elementary events that belong to both A and B - ✔✔the intersection of A and B are...
✔✔they have no sample space outcomes in common; intersection = 0 - ✔✔A and B are
mutually exclusive if...
✔✔union = P(A) + P(B) - ✔✔if A and B are mutually exclusive then the probability that A
and B (the union of A and B) will occur is...
✔✔union = P(A) + P(B) - intersection (intersection is the joint probability of A and B both
occurring together) - ✔✔if A and B are not mutually exclusive...
✔✔conditional probability - ✔✔the probability of an event A, given that B has occurred,
is called (denoted as P(A|B))
✔✔discrete random variable - ✔✔what type of variable has possible values that can be
counted?
✔✔continuous random variable - ✔✔what type of variable may assume any numerical
value in one or more intervals, takes an infinite number of possible values, and are
mostly decimals? (usually measurement)
✔✔greater than or equal to 0 - ✔✔for any value x of the random variable, p(x)
✔✔variance - ✔✔the average of the squared deviations of the different values of the
random variable from the expected value
✔✔standard deviation - ✔✔the square root of the variance is the...
SURE A+
✔✔sample space outcomes - ✔✔experimental outcomes in the sample space
✔✔0 - ✔✔if E is an experimental outcome, 0 is less than or equal to P(E) is less than 1,
if E can never occur, then P(E)=
✔✔1 - ✔✔if E is an experimental outcome, 0 is less than or equal to P(E) is less than 1,
if E is certain to occur, then P(E)=
✔✔1 - ✔✔if E is an experimental outcome, the probabilities of all the experimental
outcomes must sum to...
✔✔classical method - ✔✔what probability method is used for equally likely outcomes?
✔✔relative frequency method - ✔✔what probability method is for using the long run
relative frequency?
✔✔subjective method - ✔✔what probability method is assessment based on
experience, expertise, or intuition?
✔✔random variable - ✔✔variable whose value is numeric and determined by the
outcome of an experiment
✔✔probability distribution - ✔✔probability model describing a random variable
✔✔binomial, poisson, and hypergeometric - ✔✔3 types of discrete probability
distributions
✔✔event - ✔✔a set of sample space outcomes
, ✔✔probability of an event - ✔✔the sum of the probabilities of the sample space
outcomes
✔✔the ratio of the number of outcomes that correspond to the event divided by the total
number of outcomes - ✔✔if all outcomes equally likely, the probability of an event is
✔✔complement, union, intersection, addition, conditional probability, and multiplication -
✔✔6 elementary probability rules
✔✔the set of all sample space outcomes not in A; complement = 1 - P(A) - ✔✔the
complement of an event A is...
✔✔elementary events that belong to either A or B or both - ✔✔the union of A and B
are...
✔✔elementary events that belong to both A and B - ✔✔the intersection of A and B are...
✔✔they have no sample space outcomes in common; intersection = 0 - ✔✔A and B are
mutually exclusive if...
✔✔union = P(A) + P(B) - ✔✔if A and B are mutually exclusive then the probability that A
and B (the union of A and B) will occur is...
✔✔union = P(A) + P(B) - intersection (intersection is the joint probability of A and B both
occurring together) - ✔✔if A and B are not mutually exclusive...
✔✔conditional probability - ✔✔the probability of an event A, given that B has occurred,
is called (denoted as P(A|B))
✔✔discrete random variable - ✔✔what type of variable has possible values that can be
counted?
✔✔continuous random variable - ✔✔what type of variable may assume any numerical
value in one or more intervals, takes an infinite number of possible values, and are
mostly decimals? (usually measurement)
✔✔greater than or equal to 0 - ✔✔for any value x of the random variable, p(x)
✔✔variance - ✔✔the average of the squared deviations of the different values of the
random variable from the expected value
✔✔standard deviation - ✔✔the square root of the variance is the...
