Considers problem of optimal scheduling of Boolean expression (each Boolean variable represents binary outcome of program module) on single-processor system. Optimization discussed consists of finding operand arrangement that minimizes average execution costs representing consumption of resources (elapsed time, main memory, number of…

The use of prevalence data is discussed to help find the best way to separate at-risk and not-at-risk groups. Implications of the data being distributed normally are also discussed and several examples, including one with a nonnormal distribution, are given. (Author/GK)

Describes confidence testing methods (confidence weighting, probabilistic marking, multiple alternative selection) as alternative to computer-based, multiple choice tests and explains potential benefits (increased reliability, improved examinee evaluation of alternatives, extended diagnostic information and remediation prescriptions, happier…

Suggests a technique for use in teaching science students how to gather and analyze statistical data. (FL)

Cohen's (TM 504 890) formal rules of intuitive probability lack normative or descriptive appeal, and his interpretation of the author's findings is not compelling. (CP)

A reliability study is illustrated in which subjects are judged on a dichotomous trait by different sets of judges, possibly unequal in number. A kappa-like measure of reliability is proposed, its correspondence to an intraclass correlation coefficient is pointed out, and a test for its statistical significance is presented. (Author/CTM)

Subjects who named details in pictures performed better on subsequent recognition tests than their counterparts. Data support a model which assumes: (1) a constant probability of encoding a detail and (2) a detail is named either if it was encoded at study or with some bias probability. (Author/CP)

The necessity for inferring and predicting in everyday life is discussed. Eight activities, ranging from sixth- to twelfth-grade levels, are suggested. (MK)

Explains how people arrive at personal hazard assessments. Explores why people overestimate some hazards and underestimate others. Examines risk ratings for activities and technologies such as nuclear power, motor vehicles, pesticides, and vaccinations. (MA)

Discusses the postage rate increases in recent years and notes that if the trend continues the rate will reach three dollars an ounce by the year 2017. (GA)

A survey of Pennsylvania secondary schools showed that relatively few (15 percent) schools offered probability and statistics regularly as a complete course and of those which did, the course was elected primarily by seniors. Reasons for the lack of offerings are analyzed. (DT)

Discusses the need for and construction of a language of probability to complement the extant languages of critique and possibility in critical curriculum theory. Actions framed in the language, and the ensuing dialogue, could then be forces in radical reform through a process of infiltration, appropriation, and reconfiguration. (SM)

Presents a problem of triangular tiles that involves counting and probability. Includes instructor guiding questions. (KHR)

Describes an activity in which students investigate patterns and discrete mathematics found in telephone numbers. (YDS)

An Edgeworth approximation for accurate significance probabilities for the Wilcoxon two-sample test is substantially simplified. A method is developed that allows quick calculations of very accurate probabilities. Exact formulas are given for most of the remaining cases, and tables are presented comparing the new simplification to likely…