Using the z tables that are offered in .pdf form on D2L/Brightspace, please answer the following proportion/probability question using raw scores. You will need to use the formula z = (X - u)/o . Assume the mean IQ score is u = 100.00, o= 15.00. What proportion of IQ scores are lower than than 98.50, p(x<98.50) = _ .V a) .5398 b) .4602 c) .4960 O d) .5040