The ratio of problem drinkers to those seriously dependent on alcohol is about 4 : 1 [ 4].
The ratio of problems reported per 100 Ford vehicles increased to 116 — worse than the industry average of 107 and all but nine other brands — from 93 in 2010, when it was the top-performing mass-market brand.
Problem-solving accuracy, response time, and efficiency (i.e. the ratio of problems solved correctly to time) were measured.
This study investigated the role of self-efficacy beliefs, mathematics anxiety, and working memory capacity in problem-solving accuracy, response time, and efficiency (the ratio of problem-solving accuracy to response time).
In this study, we propose a harmony search algorithm for solving a sum-of-ratios problem.
While we found small but significant differences in the prevalence of economic hardships and mental health problems by gender, with higher prevalence's reported for women, the odds ratios of mental health problems in relation to economic hardship (all measures) where quite similar and in some cases somewhat higher for men than for women.
An alternative, somewhat more practical, representation of the likelihood ratio for problem (4) is provided by Pitcher's Theorem.
In contrast, almost all odds ratios of mental health problems are significantly elevated in the two groups with newly emerging or continuously high job stress.
Amongst flight attendants without a personal history of smoking, odds ratios of reporting sinus problems and ear infections were calculated per a 10-year increase in service as a flight attendant, without regard for pre- or post-smoking ban history.
The odds ratio of having problems with teeth position, spaces, pain and swallowing if having any malocclusion were, respectively 6.7, 3.9, 1.4 and 6.8.
