# Newbie: Difference between the meaning for the data analysis: proportion of correct responses and probability of correct responses

Very newbie, sorry if the question seems to be not very smart...

If proportion of correct respones is defined as

Number of hits + Number of correct rejections / Number of trials

Is the probability of correct responses -> probability of hits + probability of correct rejections / probability of all trials happening

-> Does the difference lie in the fact, that the probability uses distributions with the data of proportions? Is therefore probability of correct more important for data analysis?

-> Or is prob. and prop. the same thing?

-> And what does then "accuracy" mean? Prob. or prop.?