To determine whether or not exposure misclassification is associated with the outcome of a study, a total of 4434 participants were studied. The study involved reclassified systolic blood pressure (exposure) and death (outcome), with the following observations; total exposed group of 863, having 269 deaths, and the total nonexposed group of 3571 having 1264 deaths. Is the exposure misclassification random with respect to the outcome