A: ... the program cannot effectively determine the probability of a worker finding new employment in a given region.

B: ... the program cannot effectively determine the probability that a worker will find new employment in a given region.

- Thread starter Roundhouse
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A: ... the program cannot effectively determine the probability of a worker finding new employment in a given region.

B: ... the program cannot effectively determine the probability that a worker will find new employment in a given region.

A. is unambiguous. It looks only at one worker, and his or her probability of finding new employment.

B. Might be looking at the probability of at least one worker out of a group of workers finding new employment. Perhaps there are ten workers, each with a 10% probability of finding new employment and each of their chances of finding new employment were independent of the others. In this scenario, "the probability that a worker will find new employment" would be 65%.

The context may make it clear that B means the same as A, but with B you need additional context; with A you do not.

Thanks Uncle Jack, all I want to say is that the program cannot determine any unemployed worker's chances of finding a new job. Do you think A suits this?

A. is unambiguous. It looks only at one worker, and his or her probability of finding new employment.

B. Might be looking at the probability of at least one worker out of a group of workers finding new employment. Perhaps there are ten workers, each with a 10% probability of finding new employment and each of their chances of finding new employment were independent of the others. In this scenario, "the probability that a worker will find new employment" would be 65%.

The context may make it clear that B means the same as A, but with B you need additional context; with A you do not.

You will probably find it easier to incorporate A into the rest of whatever it is you are saying.