100%
predictive analytics - ANSWERwhat will happen
descriptive analytics - ANSWERWhat has happened?
correlation coefficient - ANSWERmeasure of linear relationship between 2 variables,
x and y, which doesn't depend on units of measurement
R squared - ANSWERthe proportion of the total variation in a dependent variable
explained by an independent variable
lurking variable - ANSWERunknown variable that hasnt been accounted for
equations - ANSWERactual-predicted
Multicollinearity - ANSWERindependent variables are highly correlated
p-value > alpha - ANSWERfail to reject
spam filtering emails is what type of data analysis - ANSWERclassification
agglomerative clustering - ANSWERmethods proceed by series of fusions of the n
objects into groups.
which of the following is not the strength of association - ANSWERelevator
aggressive (optimistic) strategy - ANSWERminimizes the smallest payment
(minimin)
conserative (pessimistic) strategy - ANSWERminimizes the largest payoff (minimax)
decision nodes - ANSWERdecision takes place; sqaures
p-value < alpha - ANSWERreject Ho
null hypothesis (HO) - ANSWERexisting theory or belief, always assumed to be true
probability of confidence coefficent - ANSWER(not rejecting HO | HO is true)
critical value - ANSWERhelps determine where the value falls