PUBH 6002 Biostatistics || with 100% Correct Answers.
intersection correct answers the probability both A & B occur together
union correct answers the probability of A occurring, B occurring, or both A & B occurring
Probability correct answers likelihood that a particular event will occur
A/ N
where A = frequency N= observation
must be between 0 and 1
mean correct answers average
median correct answers middle # of set
mode correct answers most common #
range correct answers difference between the highest and lowest scores
Can A and B be both mutually exclusive and independent? correct answers If A and B are
nontrivial events, then they cannot be both mutually exclusive and independent. Being mutually
exclusive is a lack of independence.
(their probabilities do not =0 )
population correct answers complete collection of all elements to be studied
event correct answers any result or outcome of interest
can occur or not occur
, frequency correct answers number of times an event occurs
observations correct answers number of times it is possible for an event to occur
probability correct answers likelihood that a particular event will occur
expressed as a ratio of frequency to observations
frequency is always less than observations
P(A) correct answers probability of event occurring
mutually exclusive correct answers two events that cannot occur at the same time
always = 0
(separate)
not mutually exclusive correct answers P(A or B) = P(A) + P(B) - P(A and B)
Events that can occur at the same time
(overlap)
Addition Rule of Probability correct answers P(A or B) = P(A) + P(B) - P(A and B)
or
(A+B)/N = A/N + B/N
(1) used to determine the probability that at least one of two events will occur
complementary events (notation A^-) correct answers Two or more mutually exclusive events
that together cover all possible outcomes. The sum of the probabilities of complementary events
is 1.
intersection correct answers the probability both A & B occur together
union correct answers the probability of A occurring, B occurring, or both A & B occurring
Probability correct answers likelihood that a particular event will occur
A/ N
where A = frequency N= observation
must be between 0 and 1
mean correct answers average
median correct answers middle # of set
mode correct answers most common #
range correct answers difference between the highest and lowest scores
Can A and B be both mutually exclusive and independent? correct answers If A and B are
nontrivial events, then they cannot be both mutually exclusive and independent. Being mutually
exclusive is a lack of independence.
(their probabilities do not =0 )
population correct answers complete collection of all elements to be studied
event correct answers any result or outcome of interest
can occur or not occur
, frequency correct answers number of times an event occurs
observations correct answers number of times it is possible for an event to occur
probability correct answers likelihood that a particular event will occur
expressed as a ratio of frequency to observations
frequency is always less than observations
P(A) correct answers probability of event occurring
mutually exclusive correct answers two events that cannot occur at the same time
always = 0
(separate)
not mutually exclusive correct answers P(A or B) = P(A) + P(B) - P(A and B)
Events that can occur at the same time
(overlap)
Addition Rule of Probability correct answers P(A or B) = P(A) + P(B) - P(A and B)
or
(A+B)/N = A/N + B/N
(1) used to determine the probability that at least one of two events will occur
complementary events (notation A^-) correct answers Two or more mutually exclusive events
that together cover all possible outcomes. The sum of the probabilities of complementary events
is 1.
