The phrase "a probability proportion" is correct and usable in written English.
It can be used in contexts related to statistics, mathematics, or any field where probabilities are discussed in relation to proportions.
Example: "In this study, we calculated a probability proportion to determine the likelihood of success in the experiment."
Alternatives: "a probability ratio" or "a likelihood fraction".
In the first stage, four schools (SRM University, Vellammal Engineering College, Crescent University, and Loyola Institution of Business Applications) were randomly selected using a probability proportion to size method from a pool of thirteen ranked business schools.
A probability proportion to size design was used to select clusters.
However it also reports a probability (proportion of 'votes') for relapse, which we call the Random Forests Relapse Score (RFRS).
Five out of the 23 districts were selected for the evaluation using a probability proportion to size sampling strategy.
Three urban wards and eight rural blocks were selected from each district by a probability proportion to size method.
The current study employed standardised methods for the measurement of hazardous alcohol consumption and a rigorous probability proportion to size sampling strategy for the classroom-based survey.
From the total number of PSUs in each of the division, the required number of sample PSUs was taken randomly, following a PPS (Probability Proportion to Size) sampling technique.
A total of 13,532 children of 0 ~ 36 months of age were recruited as subjects from 45 counties and 10 provinces in Western China with a 3-stage probability proportion to size sampling.
Using a three-stage probability proportion to size sampling method, the NHSS randomly selected 30 counties in Sichuan Province in the first stage, one town from each sampled counties in the second stage, and one THC from each sampled town in the third stage for the Prescription Survey.
SNESIM is composed of two main parts: (1) construction of search tree to save all probability proportions, and (2) simulation section where these proportions are read from the tree and used for simulation of unknown values.
A stratified, multistage probability cluster sampling method, with a probability in proportion to size procedure, was used, each cluster comprising of seven households.
