Researchers published a study in which they considered the incidence among the elderly of various mental health conditions such as dementia, bi-polar disorder, obsessive compulsive disorder, delirium, and Alzheimer's disease. In the U. S., 45% of adults over 65 suffer from one or more of the conditions considered in the study. Calculate the probability that fewer than 320 out of the the {eq}n = 750 {/eq} adults over {eq}65 {/eq} in the study suffer from one or more of the conditions under consideration. Give your answer accurate to three decimal places in decimal form.