This Concept expands upon the previous by discussing further the normal distribution and the probabilities associated with it by looking at the normal density curve.

Given any problem with a standard deviation and mean, you can change them into z-scores to find the probability of getting a certain point within the distribution above or below it.

BasicStudents matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.

At Grade (Proficient)Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.

AdvancedStudents matched to this level are ready for material that requires superior performance and mastery.