Mohawk College Microsoft Office HO... professional exams... Select the statement(s) below that are characteristics or true statements for the Standard Normal Model. Select all that apply. The shape is bell-curved. O The shape is not symmetrical. O. The center of the model is 1 O The mean of the model is 0 O The spread of the model is O. O The standard deviation of the model is 1. The total area under the model curve is 1.5 The total area under the model curve represents 100% of the data. The area under the model curve represents probabilities. The horizontal scale is whatever variable x that is being studied. ( The horizontal scale is 'z' [ The formula to standardize any 'x' value is z = (point of interest - center) /spread 1 pt