No, a correlation coefficient of 0.328 indicates a weak to moderate positive relationship between two variables. It does not guarantee that your predicted value will match the actual value exactly. There may still be some degree of variability and uncertainty in the prediction.
would it be i can't be confident at all this about as close to a random guess as you an get
A correlation coefficient of 0.328 suggests that there is some relationship between the variables, but it is not very strong. As such, you cannot be very confident in the prediction accuracy based solely on this correlation value. It is not as close to a random guess as it could be, but it still indicates a level of uncertainty in the prediction. Additional analysis and information would be needed to increase confidence in the prediction accuracy.
