Level of Math					
		Pre-Algebra	Intro Algebra	Geometry	Intermediate Algebra	Pre-Calculus	Calculus
Book Number	Book 1	657	624	775	780	592	548
	Book 2	788	688	834	689	834	713
	Book 3	843	784	894	932	850	1045
	Book 4	888	842	907	936	851	1104
	Book 5	907	904	910	944	960	1123
	Book 6	924	1008	928	1082	1040	1149
	Book 7	928	1176	960	1152	1072	1166
	Mean	847.8571429	860.8571429	886.8571429	930.7142857	885.5714286	978.2857143
	Std dev	97.77768759	189.3281354	62.37100975	159.7922759	160.9594743	245.3227223