a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters(noun.cognition)

a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes i more..a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the other(noun.cognition)

someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums) (noun.person)

(statistics) any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total (noun.cognition)

(statistics) any of nine points that divided a distribution of ranked scores into equal intervals where each interval contains one-tenth of the scores (noun.cognition)

(statistics) law stating that a large number of items taken at random from a population will (on the average) have the population statistics (noun.cognition)

(statistics) a theorem describing how the conditional probability of a set of possible causes for a given observed event can be computed from knowledg more..(statistics) a theorem describing how the conditional probability of a set of possible causes for a given observed event can be computed from knowledge of the probability of each cause and the conditional probability of the outcome of each cause(noun.cognition)

(statistics) the difficulty of applying Bayes' theorem is that the probabilities of the different causes are seldom known, in which case it may be pos more..(statistics) the difficulty of applying Bayes' theorem is that the probabilities of the different causes are seldom known, in which case it may be postulated that they are all equal (sometimes known as postulating the equidistribution of ignorance)(noun.cognition)

a theoretical distribution that is a good approximation to the binomial distribution when the probability is small and the number of trials is large (noun.cognition)

the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x) (noun.cognition)

the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of more..the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of y(noun.cognition)

when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) more..when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x); it is the slope of the regression line(noun.cognition)

any of several methods for reducing correlational data to a smaller number of dimensions or factors; beginning with a correlation matrix a small numbe more..any of several methods for reducing correlational data to a smaller number of dimensions or factors; beginning with a correlation matrix a small number of components or factors are extracted that are regarded as the basic variables that account for the interrelations observed in the data(noun.cognition)

a statistical method for making simultaneous comparisons between two or more means; a statistical method that yields values that can be tested to dete more..a statistical method for making simultaneous comparisons between two or more means; a statistical method that yields values that can be tested to determine whether a significant relation exists between variables(noun.cognition)

a two-way tabulation of the relations between correlates; row headings are the scores on one variable and column headings are the scores on the second more..a two-way tabulation of the relations between correlates; row headings are the scores on one variable and column headings are the scores on the second variables and a cell shows how many times the score on that row was associated with the score in that column(noun.cognition)

a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfe more..a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation)(noun.cognition)

a correlation in which large values of one variable are associated with large values of the other and small with small; the correlation coefficient is more..a correlation in which large values of one variable are associated with large values of the other and small with small; the correlation coefficient is between 0 and +1(noun.cognition)

a correlation in which large values of one variable are associated with small values of the other; the correlation coefficient is between 0 and -1 (noun.cognition)

a correlation between two variables (e.g., between the number of electric motors in the home and grades at school) that does not result from any direc more..a correlation between two variables (e.g., between the number of electric motors in the home and grades at school) that does not result from any direct relation between them (buying electric motors will not raise grades) but from their relation to other variables(noun.cognition)

someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums) (noun.person)

relating to or constituting the middle value of an ordered set of values (or the average of the middle two in a set with an even number of values) (adj.all)

positive recurrent aperiodic state of stochastic systems; tending in probability to a limiting form that is independent of the initial conditions (adj.all)