Examined individuals differing in sex, age, profession, eminence and fame, and historical period for presence of the birthday-deathday phenomenon. Found a decrease in probability of death with approaching birthday followed by an increase in most males. Females showed an initial rise in probability of death with approaching birthday, followed by a…

Topics from statistics and probability are presented as appropriate for gifted middle school students. Topics stress simple ways to display, compare, and interpret data. Probability methods included examining a game for fairness. (Author/CL)

Instruction in mathematical probability to enhance higher levels of critical and creative thinking with gifted students is described. Among thinking skills developed by such an approach are analysis, synthesis, evaluation, fluency, and complexity. (CL)

This paper presents a method designed to assist practitioners in the interpretation of the practical significance of a statistically significant logistic regression coefficient is presented. To avoid the interpretation problems encountered when using the traditionally reported change in either the log odds or odds values, this method centers the…

A probabilistic model for interactive retrieval is presented. Bayesian statistical decision theory principles are applied: use of prior and sample information about the relationship of document descriptions to query relevance; maximization of expected value of a utility function, to the problem of optimally restructuring search strategies in an…

Earlier Analyses are shown to involve special cases of the equations developed here; also that a general four-state chain has the same parameter space as an all-or-none model if and only if its representation with an observable absorbing state is lumpable into a Markov chain with three states. (Author/GS)

The author presents a syllabus for an introductory (first year after high school) course in statistics and probability and some methods of teaching statistical techniques. The description comes basically from the procedures used at the Indian Statistical Institute, Calcutta. (JG)

Results of using platonic solids for probability experiments are presented. (JG)

Examines Weir's hypothesis of a U-shaped relationship between age and terminal level of correct responding; studies use of alternation patterning as a response strategy; investigates extent to which immediate reinforcement controlled the subjects' choices. The results reported here are based on part of a doctoral dissertation submitted by the…

When comparing k normal populations an investigator might want to know the probability that the population with the largest population mean will have the largest sample mean. This paper describes and illustrates methods of approximating this probability when the variances are unknown and possibly unequal. (Author/BW)

A least squares statistical procedure for fitting utility functions is extended to truncated normal and extended beta functions. Implications for educational decision-making are discussed. (JKS)