IEE 380 Exam 1 Questions and Answers Already Passed
analytic study - Answers Analytic studies are done to test specific hypotheses
cause and effect - Answers Cause and effect refers to a relationship between two phenomena
in which one phenomenon is the reason behind the other
empirical model - Answers Empirical modeling refers to any kind of modeling based on
empirical observations rather than on mathematically describable relationships of the system
modeled.
Empirical: based on, concerned with, or verifiable by observation or experience rather than
theory or pure logic
hypothesis testing - Answers a statement about a process behavior value compared to a claim
about another process value, data is gathered to support or refuse a claim
mechanistic model - Answers built from our underlying knowledge of the basic physical
mechanism that related several variables
ex: ohms law
current = V/R
I = E/R
observational study - Answers a study where data is collected in the present by a passive
observer
overcontrol - Answers having too much control over an experiment, as more overcontrol there is
more variability
population - Answers a set of similar items or events which is of interest for some question or
experiment
probability model - Answers A probability model is a mathematical representation of a random
phenomenon. It is defined by its sample space, events within the sample space, and
probabilities associated with each event. The sample space S for a probability model is the set
of all possible outcomes.
randomization - Answers Randomization refers to the practice of using chance methods
(random number tables, flipping a coin, etc.) to assign subjects to treatments
retrospective study - Answers a study using historical data, aka data collected in the past for
, other purposes
sample - Answers a data sample is a set of data collected and the world selected from a
statistical population by a defined procedure
statistical inference - Answers Statistical inference is the process of using data analysis to
deduce properties of an underlying probability distribution
statistical process control - Answers a method of quality control which employs statistical
methods to monitor and control a process
tampering - Answers responding to variance to lower the variance will actually make variability
increase
time series - Answers A time series is a series of data points indexed (or listed or graphed) in
time order
variability - Answers successive observations of a system or phenomenon do not produce
exactly the same result
addition rule - Answers P(A u B) = P(A) + P(B) - P(A n B)
probability of A + probability of B - the intersection of A & B because (A n B) is counted twice in
P(A) + P(B)
combination - Answers a selection of r items from a set of n where order does not matter
nCr
equally likely outcomes - Answers whenever a sample space consists of N popssible outcomes
that are equally likely, the probability of each outcome is 1/N
ex: throw of a fair dye
event - Answers an event is a set of outcomes of an experiment (a subset of the sample space)
to which a probability is assigned
independence - Answers if the events E1 and E2 are independent, then P(E1 n E2) = P(E1)*P(E2)
the outcome of one event does not effect the outcome of another event
analytic study - Answers Analytic studies are done to test specific hypotheses
cause and effect - Answers Cause and effect refers to a relationship between two phenomena
in which one phenomenon is the reason behind the other
empirical model - Answers Empirical modeling refers to any kind of modeling based on
empirical observations rather than on mathematically describable relationships of the system
modeled.
Empirical: based on, concerned with, or verifiable by observation or experience rather than
theory or pure logic
hypothesis testing - Answers a statement about a process behavior value compared to a claim
about another process value, data is gathered to support or refuse a claim
mechanistic model - Answers built from our underlying knowledge of the basic physical
mechanism that related several variables
ex: ohms law
current = V/R
I = E/R
observational study - Answers a study where data is collected in the present by a passive
observer
overcontrol - Answers having too much control over an experiment, as more overcontrol there is
more variability
population - Answers a set of similar items or events which is of interest for some question or
experiment
probability model - Answers A probability model is a mathematical representation of a random
phenomenon. It is defined by its sample space, events within the sample space, and
probabilities associated with each event. The sample space S for a probability model is the set
of all possible outcomes.
randomization - Answers Randomization refers to the practice of using chance methods
(random number tables, flipping a coin, etc.) to assign subjects to treatments
retrospective study - Answers a study using historical data, aka data collected in the past for
, other purposes
sample - Answers a data sample is a set of data collected and the world selected from a
statistical population by a defined procedure
statistical inference - Answers Statistical inference is the process of using data analysis to
deduce properties of an underlying probability distribution
statistical process control - Answers a method of quality control which employs statistical
methods to monitor and control a process
tampering - Answers responding to variance to lower the variance will actually make variability
increase
time series - Answers A time series is a series of data points indexed (or listed or graphed) in
time order
variability - Answers successive observations of a system or phenomenon do not produce
exactly the same result
addition rule - Answers P(A u B) = P(A) + P(B) - P(A n B)
probability of A + probability of B - the intersection of A & B because (A n B) is counted twice in
P(A) + P(B)
combination - Answers a selection of r items from a set of n where order does not matter
nCr
equally likely outcomes - Answers whenever a sample space consists of N popssible outcomes
that are equally likely, the probability of each outcome is 1/N
ex: throw of a fair dye
event - Answers an event is a set of outcomes of an experiment (a subset of the sample space)
to which a probability is assigned
independence - Answers if the events E1 and E2 are independent, then P(E1 n E2) = P(E1)*P(E2)
the outcome of one event does not effect the outcome of another event
