2.12 Probability (AS 91267) General Information Probability (AS 91267) is a 4 credit external. NZQA Assessment Specification Probability is a external with roughly equal weighting to Normal Distribution, Probability Tables and Probability Trees. It is an essential standard for students who are looking to move on to Level 3 Statistics. 2.12 Probability Resources 0_Teaching_Order.doc 1_Experimental_relative_frequency.doc … Continue reading 2.12 Probability